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2022-01-12perf cpumap: Add some comments to cpu_aggr_mapIan Rogers1-1/+9
Move cpu_aggr_map__empty_new() to be with other cpu_aggr_map function. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Move 'has' function to libperfIan Rogers3-8/+1
Make the cpu map argument const for consistency with the rest of the API. Modify cpu_map__idx accordingly. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Rename cpu_map__get_X_aggr_by_cpu functionsIan Rogers2-11/+32
The functions don't use a cpu_map so reduce them to being like constructors of aggr_cpu_id. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Refactor cpu_map__build_map()Ian Rogers2-45/+30
Turn it into a cpu_aggr_map__new(). Pass helper functions. Refactor builtin-stat calls to manually pass function pointers. Try to reduce some copy-paste code. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Remove cpu_map__cpu(), use libperf functionIan Rogers3-9/+3
Switch the remaining few users of cpu_map__cpu() to perf_cpu_map__cpu() and remove the function. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] [ Did the conversion to perf_ftrace__latency_prepare_bpf() as well, used when building with BUILD_BPF_SKEL=1 ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Remove map from function names that don't use a mapIan Rogers4-14/+27
Move to the cpu name and document for consistency. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Document cpu__get_node() and remove redundant functionIan Rogers2-7/+9
cpu_map__get_node_id() isn't used externally and merely delegates to cpu__get_node(). Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Rename empty functionsIan Rogers3-19/+19
Remove cpu_map from name as a cpu_map isn't used. Pass a const pointer rather than by value to avoid unnecessary copying. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Simplify equal function nameIan Rogers3-16/+18
Rename cpu_map__compare_aggr_cpu_id() to aggr_cpu_id__equal(), the cpu_map part of the name is misleading. Equal better describes the function than compare. Switch to const pointer rather than value as struct given the number of variables in aggr_cpu_id(). Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Remove unused cpu_map__socket()Ian Rogers1-7/+0
Unused function so remove. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Add comments to aggr_cpu_id()Ian Rogers1-0/+9
This code is already tested in topology.c. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Remove map+index get_node()Ian Rogers2-9/+0
Migrate final users to appropriate cpu variant. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Remove map+index get_core()Ian Rogers2-9/+0
Migrate final users to appropriate cpu variant. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Remove map+index get_die()Ian Rogers3-11/+1
Migrate final users to appropriate cpu variant. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Remove map+index get_socket()Ian Rogers3-11/+1
Migrate final users to appropriate cpu variant. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf cpumap: Switch cpu_map__build_map() to cpu functionIan Rogers2-7/+7
Avoid error prone cpu_map + idx variant. Remove now unused functions. Committer notes: Remove by now unused perf_env__get_cpu(). Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf stat: Switch to cpu version of cpu_map__get()Ian Rogers2-9/+5
Avoid possible bugs where the wrong index is passed with the cpu_map. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf stat: Switch aggregation to use for_each loopIan Rogers1-21/+27
Tidy up the use of cpu and index to hopefully make the code less error prone. Avoid unused warnings with (void) which will be removed in a later patch. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf stat: Correct aggregation CPU mapIan Rogers1-1/+1
Switch the perf_cpu_map in aggr_update_shadow from the evlist to the counter's cpu map, so the index is appropriate. This addresses a problem where uncore counts, with a cpumap like: $ cat /sys/devices/uncore_imc_0/cpumask 0,18 Don't aggregate counts in CPUs based on the index of those values in the cpumap (0 and 1) but on the actual CPU (0 and 18). Thereby correcting metric calculations in per-socket mode for counters without a full cpumask. On a SkylakeX with a tweaked DRAM_BW_Use metric, to remove unnecessary scaling, this gives: Before: $ /perf stat --per-socket -M DRAM_BW_Use -I 1000 1.001102293 S0 1 27.01 MiB uncore_imc/cas_count_write/ # 103.00 DRAM_BW_Use 1.001102293 S0 1 30.22 MiB uncore_imc/cas_count_read/ 1.001102293 S0 1 1,001,102,293 ns duration_time 1.001102293 S1 1 20.10 MiB uncore_imc/cas_count_write/ # 0.00 DRAM_BW_Use 1.001102293 S1 1 32.74 MiB uncore_imc/cas_count_read/ 1.001102293 S1 0 <not counted> ns duration_time 2.003517973 S0 1 83.04 MiB uncore_imc/cas_count_write/ # 920.00 DRAM_BW_Use 2.003517973 S0 1 145.95 MiB uncore_imc/cas_count_read/ 2.003517973 S0 1 1,002,415,680 ns duration_time 2.003517973 S1 1 302.45 MiB uncore_imc/cas_count_write/ # 0.00 DRAM_BW_Use 2.003517973 S1 1 290.99 MiB uncore_imc/cas_count_read/ 2.003517973 S1 0 <not counted> ns duration_time After: $ perf stat --per-socket -M DRAM_BW_Use -I 1000 1.001080840 S0 1 24.96 MiB uncore_imc/cas_count_write/ # 54.00 DRAM_BW_Use 1.001080840 S0 1 33.64 MiB uncore_imc/cas_count_read/ 1.001080840 S0 1 1,001,080,840 ns duration_time 1.001080840 S1 1 42.43 MiB uncore_imc/cas_count_write/ # 84.00 DRAM_BW_Use 1.001080840 S1 1 47.05 MiB uncore_imc/cas_count_read/ 1.001080840 S1 0 <not counted> ns duration_time Signed-off-by: Ian Rogers <[email protected]> Tested-by: John Garry <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf stat: Add aggr creators that are passed a cpuIan Rogers2-34/+51
The cpu_map and index can get confused. Add variants of the cpu_map__get routines that are passed a cpu. Make the existing cpu_map__get routines use the new functions with a view to remove them when no longer used. Reviewed-by: James Clark <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Clarke <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Vineet Singh <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf evsel: Improve error message for uncore eventsIan Rogers1-0/+4
When a group has multiple events and the leader fails it can yield errors like: $ perf stat -e '{uncore_imc/cas_count_read/},instructions' /bin/true Error: The sys_perf_event_open() syscall returned with 22 (Invalid argument) for event (uncore_imc/cas_count_read/). /bin/dmesg | grep -i perf may provide additional information. However, when not the group leader <not supported> is given: $ perf stat -e '{instructions,uncore_imc/cas_count_read/}' /bin/true ... 1,619,057 instructions <not supported> MiB uncore_imc/cas_count_read/ This is necessary because get_group_fd will fail if the leader fails and is the direct result of the check on line 750 of builtin-stat.c in stat_handle_error that returns COUNTER_SKIP for the latter case. This patch improves the error message to: $ perf stat -e '{uncore_imc/cas_count_read/},instructions' /bin/true Error: Invalid event (uncore_imc/cas_count_read/) in per-thread mode, enable system wide with '-a'. v2. Changed the test to use !target__has_cpu as suggested by Namhyung Kim. Signed-off-by: Ian Rogers <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-12perf script: Fix hex dump character outputAdrian Hunter1-1/+1
Using grep -C with perf script -D can give erroneous results as grep loses lines due to non-printable characters, for example, below the 0020, 0060 and 0070 lines are missing: $ perf script -D | grep -C10 AUX | head . 0010: 08 00 00 00 00 00 00 00 1f 00 00 00 00 00 00 00 ................ . 0030: 01 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 ................ . 0040: 00 08 00 00 00 00 00 00 02 00 00 00 00 00 00 00 ................ . 0050: 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ . 0080: 02 00 00 00 00 00 00 00 1b 00 00 00 00 00 00 00 ................ . 0090: 00 00 00 00 00 00 00 00 ........ 0 0 0x450 [0x98]: PERF_RECORD_AUXTRACE_INFO type: 1 PMU Type 8 Time Shift 31 perf's isprint() is a custom implementation from the kernel, but the kernel's _ctype appears to include characters from Latin-1 Supplement which is not compatible with, for example, UTF-8. Fix by checking also isascii(). After: $ tools/perf/perf script -D | grep -C10 AUX | head . 0010: 08 00 00 00 00 00 00 00 1f 00 00 00 00 00 00 00 ................ . 0020: 03 84 32 2f 00 00 00 00 63 7c 4f d2 fa ff ff ff ..2/....c|O..... . 0030: 01 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 ................ . 0040: 00 08 00 00 00 00 00 00 02 00 00 00 00 00 00 00 ................ . 0050: 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ . 0060: 00 02 00 00 00 00 00 00 00 c0 03 00 00 00 00 00 ................ . 0070: e2 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 ................ . 0080: 02 00 00 00 00 00 00 00 1b 00 00 00 00 00 00 00 ................ . 0090: 00 00 00 00 00 00 00 00 ........ Fixes: 3052ba56bcb58904 ("tools perf: Move from sane_ctype.h obtained from git to the Linux's original") Signed-off-by: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-10Merge tag '5.17-net-next' of ↵Linus Torvalds2-2/+19
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core ---- - Defer freeing TCP skbs to the BH handler, whenever possible, or at least perform the freeing outside of the socket lock section to decrease cross-CPU allocator work and improve latency. - Add netdevice refcount tracking to locate sources of netdevice and net namespace refcount leaks. - Make Tx watchdog less intrusive - avoid pausing Tx and restarting all queues from a single CPU removing latency spikes. - Various small optimizations throughout the stack from Eric Dumazet. - Make netdev->dev_addr[] constant, force modifications to go via appropriate helpers to allow us to keep addresses in ordered data structures. - Replace unix_table_lock with per-hash locks, improving performance of bind() calls. - Extend skb drop tracepoint with a drop reason. - Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW. BPF --- - New helpers: - bpf_find_vma(), find and inspect VMAs for profiling use cases - bpf_loop(), runtime-bounded loop helper trading some execution time for much faster (if at all converging) verification - bpf_strncmp(), improve performance, avoid compiler flakiness - bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt() for tracing programs, all inlined by the verifier - Support BPF relocations (CO-RE) in the kernel loader. - Further the support for BTF_TYPE_TAG annotations. - Allow access to local storage in sleepable helpers. - Convert verifier argument types to a composable form with different attributes which can be shared across types (ro, maybe-null). - Prepare libbpf for upcoming v1.0 release by cleaning up APIs, creating new, extensible ones where missing and deprecating those to be removed. Protocols --------- - WiFi (mac80211/cfg80211): - notify user space about long "come back in N" AP responses, allow it to react to such temporary rejections - allow non-standard VHT MCS 10/11 rates - use coarse time in airtime fairness code to save CPU cycles - Bluetooth: - rework of HCI command execution serialization to use a common queue and work struct, and improve handling errors reported in the middle of a batch of commands - rework HCI event handling to use skb_pull_data, avoiding packet parsing pitfalls - support AOSP Bluetooth Quality Report - SMC: - support net namespaces, following the RDMA model - improve connection establishment latency by pre-clearing buffers - introduce TCP ULP for automatic redirection to SMC - Multi-Path TCP: - support ioctls: SIOCINQ, OUTQ, and OUTQNSD - support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT, IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY - support cmsgs: TCP_INQ - improvements in the data scheduler (assigning data to subflows) - support fastclose option (quick shutdown of the full MPTCP connection, similar to TCP RST in regular TCP) - MCTP (Management Component Transport) over serial, as defined by DMTF spec DSP0253 - "MCTP Serial Transport Binding". Driver API ---------- - Support timestamping on bond interfaces in active/passive mode. - Introduce generic phylink link mode validation for drivers which don't have any quirks and where MAC capability bits fully express what's supported. Allow PCS layer to participate in the validation. Convert a number of drivers. - Add support to set/get size of buffers on the Rx rings and size of the tx copybreak buffer via ethtool. - Support offloading TC actions as first-class citizens rather than only as attributes of filters, improve sharing and device resource utilization. - WiFi (mac80211/cfg80211): - support forwarding offload (ndo_fill_forward_path) - support for background radar detection hardware - SA Query Procedures offload on the AP side New hardware / drivers ---------------------- - tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with real-time requirements for isochronous communication with protocols like OPC UA Pub/Sub. - Qualcomm BAM-DMUX WWAN - driver for data channels of modems integrated into many older Qualcomm SoCs, e.g. MSM8916 or MSM8974 (qcom_bam_dmux). - Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch driver with support for bridging, VLANs and multicast forwarding (lan966x). - iwlmei driver for co-operating between Intel's WiFi driver and Intel's Active Management Technology (AMT) devices. - mse102x - Vertexcom MSE102x Homeplug GreenPHY chips - Bluetooth: - MediaTek MT7921 SDIO devices - Foxconn MT7922A - Realtek RTL8852AE Drivers ------- - Significantly improve performance in the datapaths of: lan78xx, ax88179_178a, lantiq_xrx200, bnxt. - Intel Ethernet NICs: - igb: support PTP/time PEROUT and EXTTS SDP functions on 82580/i354/i350 adapters - ixgbevf: new PF -> VF mailbox API which avoids the risk of mailbox corruption with ESXi - iavf: support configuration of VLAN features of finer granularity, stacked tags and filtering - ice: PTP support for new E822 devices with sub-ns precision - ice: support firmware activation without reboot - Mellanox Ethernet NICs (mlx5): - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool - support TC forwarding when tunnel encap and decap happen between two ports of the same NIC - dynamically size and allow disabling various features to save resources for running in embedded / SmartNIC scenarios - Broadcom Ethernet NICs (bnxt): - use page frag allocator to improve Rx performance - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool - Other Ethernet NICs: - amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support - Microsoft cloud/virtual NIC (mana): - add XDP support (PASS, DROP, TX) - Mellanox Ethernet switches (mlxsw): - initial support for Spectrum-4 ASICs - VxLAN with IPv6 underlay - Marvell Ethernet switches (prestera): - support flower flow templates - add basic IP forwarding support - NXP embedded Ethernet switches (ocelot & felix): - support Per-Stream Filtering and Policing (PSFP) - enable cut-through forwarding between ports by default - support FDMA to improve packet Rx/Tx to CPU - Other embedded switches: - hellcreek: improve trapping management (STP and PTP) packets - qca8k: support link aggregation and port mirroring - Qualcomm 802.11ax WiFi (ath11k): - qca6390, wcn6855: enable 802.11 power save mode in station mode - BSS color change support - WCN6855 hw2.1 support - 11d scan offload support - scan MAC address randomization support - full monitor mode, only supported on QCN9074 - qca6390/wcn6855: report signal and tx bitrate - qca6390: rfkill support - qca6390/wcn6855: regdb.bin support - Intel WiFi (iwlwifi): - support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS) in cooperation with the BIOS - support for Optimized Connectivity Experience (OCE) scan - support firmware API version 68 - lots of preparatory work for the upcoming Bz device family - MediaTek WiFi (mt76): - Specific Absorption Rate (SAR) support - mt7921: 160 MHz channel support - RealTek WiFi (rtw88): - Specific Absorption Rate (SAR) support - scan offload - Other WiFi NICs - ath10k: support fetching (pre-)calibration data from nvmem - brcmfmac: configure keep-alive packet on suspend - wcn36xx: beacon filter support" * tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2048 commits) tcp: tcp_send_challenge_ack delete useless param `skb` net/qla3xxx: Remove useless DMA-32 fallback configuration rocker: Remove useless DMA-32 fallback configuration hinic: Remove useless DMA-32 fallback configuration lan743x: Remove useless DMA-32 fallback configuration net: enetc: Remove useless DMA-32 fallback configuration cxgb4vf: Remove useless DMA-32 fallback configuration cxgb4: Remove useless DMA-32 fallback configuration cxgb3: Remove useless DMA-32 fallback configuration bnx2x: Remove useless DMA-32 fallback configuration et131x: Remove useless DMA-32 fallback configuration be2net: Remove useless DMA-32 fallback configuration vmxnet3: Remove useless DMA-32 fallback configuration bna: Simplify DMA setting net: alteon: Simplify DMA setting myri10ge: Simplify DMA setting qlcnic: Simplify DMA setting net: allwinner: Fix print format page_pool: remove spinlock in page_pool_refill_alloc_cache() amt: fix wrong return type of amt_send_membership_update() ...
2022-01-10perf sort: Include global and local variants for p_stage_cyc sort keyAthira Rajeev4-12/+32
Sort key 'p_stage_cyc' is used to present the latency cycles spent in pipeline stages. perf has local 'p_stage_cyc' sort key to display this info. There is no global variant available for this sort key. The local variant shows latency in a single sample, whereas the global value will be useful to present the total latency (sum of latencies) in the hist entry. It represents the latency number multiplied by the number of samples. Add global ('p_stage_cyc') and local variant ('local_p_stage_cyc') for this sort key. Use 'local_p_stage_cyc' as default option for "mem" sort mode. Also add this to the list of dynamic sort keys and made the "dynamic_headers" and "arch_specific_sort_keys" as static. Reported-by: Namhyung Kim <[email protected]> Signed-off-by: Athira Jajeev <[email protected]> Tested-by: Nageswara R Sastry <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Madhavan Srinivasan <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-10Merge remote-tracking branch 'torvalds/master' into perf/coreArnaldo Carvalho de Melo1-19/+0
To pick up fixes. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-07Revert "libtraceevent: Increase libtraceevent logging when verbose"Arnaldo Carvalho de Melo1-19/+0
This reverts commit 08efcb4a638d260ef7fcbae64ecf7ceceb3f1841. This breaks the build as it will prefer using libbpf-devel header files, even when not using LIBBPF_DYNAMIC=1, breaking the build. This was detected on OpenSuSE Tumbleweed with libtraceevent-devel 1.3.0, as described by Jiri Slaby: ======================================================================= It breaks build with LIBTRACEEVENT_DYNAMIC and version 1.3.0: > util/debug.c: In function ‘perf_debug_option’: > util/debug.c:243:17: error: implicit declaration of function ‘tep_set_loglevel’ [-Werror=implicit-function-declaration] > 243 | tep_set_loglevel(TEP_LOG_INFO); > | ^~~~~~~~~~~~~~~~ > util/debug.c:243:34: error: ‘TEP_LOG_INFO’ undeclared (first use in this function); did you mean ‘TEP_PRINT_INFO’? > 243 | tep_set_loglevel(TEP_LOG_INFO); > | ^~~~~~~~~~~~ > | TEP_PRINT_INFO > util/debug.c:243:34: note: each undeclared identifier is reported only once for each function it appears in > util/debug.c:245:34: error: ‘TEP_LOG_DEBUG’ undeclared (first use in this function) > 245 | tep_set_loglevel(TEP_LOG_DEBUG); > | ^~~~~~~~~~~~~ > util/debug.c:247:34: error: ‘TEP_LOG_ALL’ undeclared (first use in this function) > 247 | tep_set_loglevel(TEP_LOG_ALL); > | ^~~~~~~~~~~ It is because the gcc's command line looks like: gcc ... -I/home/abuild/rpmbuild/BUILD/tools/lib/ ... -DLIBTRACEEVENT_VERSION=65790 ... ======================================================================= The proper way to fix this is more involved and so not suitable for this late in the 5.16-rc stage. Reported-by: Jiri Slaby <[email protected]> Link: https://lore.kernel.org/lkml/[email protected] Cc: Andrii Nakryiko <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Song Liu <[email protected]> Cc: Steven Rostedt <[email protected]> Link: https://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski3-7/+24
No conflicts. Signed-off-by: Jakub Kicinski <[email protected]>
2022-01-03Merge remote-tracking branch 'torvalds/master' into perf/coreArnaldo Carvalho de Melo3-7/+24
To pick up fixes. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-01-02perf pmu: Fix alias events listJohn Garry1-6/+17
Commit 0e0ae8742207c3b4 ("perf list: Display hybrid PMU events with cpu type") changes the event list for uncore PMUs or arm64 heterogeneous CPU systems, such that duplicate aliases are incorrectly listed per PMU (which they should not be), like: # perf list ... unc_cbo_cache_lookup.any_es [Unit: uncore_cbox L3 Lookup any request that access cache and found line in E or S-state] unc_cbo_cache_lookup.any_es [Unit: uncore_cbox L3 Lookup any request that access cache and found line in E or S-state] unc_cbo_cache_lookup.any_i [Unit: uncore_cbox L3 Lookup any request that access cache and found line in I-state] unc_cbo_cache_lookup.any_i [Unit: uncore_cbox L3 Lookup any request that access cache and found line in I-state] ... Notice how the events are listed twice. The named commit changed how we remove duplicate events, in that events for different PMUs are not treated as duplicates. I suppose this is to handle how "Each hybrid pmu event has been assigned with a pmu name". Fix PMU alias listing by restoring behaviour to remove duplicates for non-hybrid PMUs. Fixes: 0e0ae8742207c3b4 ("perf list: Display hybrid PMU events with cpu type") Signed-off-by: John Garry <[email protected]> Tested-by: Zhengjun Xing <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-0/+5
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c commit 077cdda764c7 ("net/mlx5e: TC, Fix memory leak with rules with internal port") commit 31108d142f36 ("net/mlx5: Fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'") commit 4390c6edc0fb ("net/mlx5: Fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'") https://lore.kernel.org/all/[email protected]/ net/smc/smc_wr.c commit 49dc9013e34b ("net/smc: Use the bitmap API when applicable") commit 349d43127dac ("net/smc: fix kernel panic caused by race of smc_sock") bitmap_zero()/memset() is removed by the fix Signed-off-by: Jakub Kicinski <[email protected]>
2021-12-28perf intel-pt: Fix parsing of VM time correlation argumentsAdrian Hunter1-0/+1
Parser did not take ':' into account. Example: Before: $ perf record -e intel_pt//u uname Linux [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.026 MB perf.data ] $ perf inject -i perf.data --vm-time-correlation="dry-run 123" $ perf inject -i perf.data --vm-time-correlation="dry-run 123:456" Failed to parse VM Time Correlation options 0x620 [0x98]: failed to process type: 70 [Invalid argument] $ After: $ perf inject -i perf.data --vm-time-correlation="dry-run 123:456" $ Fixes: e3ff42bdebcfeb5f ("perf intel-pt: Parse VM Time Correlation options and set up decoding") Signed-off-by: Adrian Hunter <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-28perf expr: Fix return value of ids__new()Miaoqian Lin1-1/+6
callers of ids__new() function only do NULL checking for the return value. ids__new() calles hashmap__new(), which may return ERR_PTR(-ENOMEM). Instead of changing the checking one-by-one return NULL instead of ERR_PTR(-ENOMEM) to keep it consistent. Signed-off-by: Miaoqian Lin <[email protected]> Reviewed-by: German Gomez <[email protected]> Tested-by: German Gomez <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-22tools headers UAPI: Add new macros for mem_hops field to perf_event.hKajol Jain1-11/+18
Add new macros for mem_hops field which can be used to represent remote-node, socket and board level details. Currently the code had macro for HOPS_0 which, corresponds to data coming from another core but same node. Add new macros for HOPS_1 to HOPS_3 to represent remote-node, socket and board level data. Also add corresponding strings in the mem_hops array to represent mem_hop field data in perf_mem__lvl_scnprintf function Incase mem_hops field is used, PERF_MEM_LVLNUM field also need to be set inorder to represent the data source. Hence printing data source via PERF_MEM_LVL field can be skip in that scenario. For ex: Encodings for mem_hops fields with L2 cache: L2 - local L2 L2 | REMOTE | HOPS_0 - remote core, same node L2 L2 | REMOTE | HOPS_1 - remote node, same socket L2 L2 | REMOTE | HOPS_2 - remote socket, same board L2 L2 | REMOTE | HOPS_3 - remote board L2 Signed-off-by: Kajol Jain <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Athira Jajeev <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Jin Yao <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Madhavan Srinivasan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Nageswara R Sastry <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Song Liu <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-22Merge remote-tracking branch 'torvalds/master' into perf/coreArnaldo Carvalho de Melo1-0/+5
To pick up fixes. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-21perf arm64: Inject missing frames when using 'perf record --call-graph=fp'Alexandre Truong5-5/+89
When unwinding using frame pointers on ARM64, the return address of the current function may not have been pushed into the stack when a function was interrupted, which makes perf show an incorrect call graph to the user. Consider the following example program: void leaf() { /* long computation */ } void parent() { // (1) leaf(); // (2) } ... could be compiled into (using gcc -fno-inline -fno-omit-frame-pointer): leaf: /* long computation */ nop ret parent: // (1) stp x29, x30, [sp, -16]! mov x29, sp bl parent nop ldp x29, x30, [sp], 16 // (2) ret If the program is interrupted at (1), (2), or any point in "leaf:", the call graph will skip the callers of the current function. We can unwind using the dwarf info and check if the return addr is the same as the LR register, and inject the missing frame into the call graph. Before this patch, the above example shows the following call-graph when recording using "--call-graph fp" mode in ARM64: # Children Self Command Shared Object Symbol # ........ ........ ........ ................ ...................... # 99.86% 99.86% program3 program3 [.] leaf | ---_start __libc_start_main main leaf As can be seen, the "parent" function is missing. This is specially problematic in "leaf" because for leaf functions the compiler may always omit pushing the return addr into the stack. After this patch, it shows the correct graph: # Children Self Command Shared Object Symbol # ........ ........ ........ ................ ...................... # 99.86% 99.86% program3 program3 [.] leaf | ---_start __libc_start_main main parent leaf Reviewed-by: James Clark <[email protected]> Signed-off-by: Alexandre Truong <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: John Garry <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: German Gomez <[email protected]> [ Rename machine__normalize_is() to machine__normalized_is(), as suggested by James Clark ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-21perf tools: Refactor SMPL_REG macro in perf_regs.hGerman Gomez1-2/+5
Refactor the SAMPL_REG macro so that it can be used in a followup commit to obtain the masks for ARM64 registers. Reviewed-by: James Clark <[email protected]> Signed-off-by: German Gomez <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: John Garry <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-21perf callchain: Enable dwarf_callchain_users on arm64Alexandre Truong2-2/+14
Enable dwarf_callchain_users on arm64 which will be needed to do a DWARF unwind in order to get the caller of the leaf frame. Reviewed-by: James Clark <[email protected]> Signed-off-by: Alexandre Truong <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: John Garry <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: German Gomez <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-21perf machine: Add a mechanism to inject stack framesAlexandre Truong1-1/+36
Add a mechanism for platforms to inject stack frames for the leaf frame caller if there is enough information to determine a frame is missing from dwarf or other post processing mechanisms. Reviewed-by: James Clark <[email protected]> Signed-off-by: Alexandre Truong <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: John Garry <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: German Gomez <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-21perf tools: Record ARM64 LR register automaticallyAlexandre Truong1-0/+2
On ARM64, automatically record the link register if the frame pointer mode is on. It will be used to do a dwarf unwind to find the caller of the leaf frame if the frame pointer was omitted. Reviewed-by: James Clark <[email protected]> Signed-off-by: Alexandre Truong <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: John Garry <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: German Gomez <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-18perf expr: Fix missing check for return value of hashmap__new()Miaoqian Lin1-0/+5
The hashmap__new() function may return ERR_PTR(-ENOMEM) when malloc() fails, add IS_ERR() checking for ctx->ids. Signed-off-by: Miaoqian Lin <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] [ s/kfree()/free()/ and add missing linux/err.h include ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-17perf arm-spe: Synthesize SPE instruction eventsGerman Gomez1-0/+62
Synthesize instruction events for every ARM SPE record. Arm SPE implements a hardware-based sample period, and perf implements a software-based one. Add a warning message to inform the user of this. Signed-off-by: German Gomez <[email protected]> Tested-by: Leo Yan <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski5-32/+64
No conflicts. Signed-off-by: Jakub Kicinski <[email protected]>
2021-12-16perf ftrace: Implement cpu and task filters in BPFNamhyung Kim2-1/+62
Honor cpu and task options to set up filters (by pid or tid) in the BPF program. For example, the following command will show latency of the mutex_lock for process 2570. # perf ftrace latency -b -T mutex_lock -p 2570 sleep 3 # DURATION | COUNT | GRAPH | 0 - 1 us | 675 | ############################## | 1 - 2 us | 9 | | 2 - 4 us | 0 | | 4 - 8 us | 0 | | 8 - 16 us | 0 | | 16 - 32 us | 0 | | 32 - 64 us | 0 | | 64 - 128 us | 0 | | 128 - 256 us | 0 | | 256 - 512 us | 0 | | 512 - 1024 us | 0 | | 1 - 2 ms | 0 | | 2 - 4 ms | 0 | | 4 - 8 ms | 0 | | 8 - 16 ms | 0 | | 16 - 32 ms | 0 | | 32 - 64 ms | 0 | | 64 - 128 ms | 0 | | 128 - 256 ms | 0 | | 256 - 512 ms | 0 | | 512 - 1024 ms | 0 | | 1 - ... s | 0 | | Committer testing: Looking at faults on a firefox process: # strace -e bpf perf ftrace latency -b -p 1674378 -T __handle_mm_fault bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=2, insns=0x7ffee1fee740, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0\20\0\0\0\20\0\0\0\5\0\0\0\1\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=45, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0000\0\0\0000\0\0\0\t\0\0\0\1\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=81, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\08\0\0\08\0\0\0\t\0\0\0\0\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=89, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0\f\0\0\0\f\0\0\0\7\0\0\0\1\0\0\0\0\0\0\20"..., btf_log_buf=NULL, btf_size=43, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0000\0\0\0000\0\0\0\t\0\0\0\1\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=81, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0000\0\0\0000\0\0\0\5\0\0\0\0\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=77, btf_log_size=0, btf_log_level=0}, 128) = -1 EINVAL (Invalid argument) bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0 \3\0\0 \3\0\0\306\3\0\0\0\0\0\0\0\0\0\2"..., btf_log_buf=NULL, btf_size=1790, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=32, max_entries=1, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 4 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=5, insns=0x7ffee1fee570, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0}, 128) = 5 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=4, max_entries=1, map_flags=BPF_F_MMAPABLE, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 4 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=2, insns=0x7ffee1fee3c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="test", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0}, 128) = 4 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_HASH, key_size=8, value_size=8, max_entries=10000, map_flags=0, inner_map_fd=0, map_name="functime", map_ifindex=0, btf_fd=3, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 4 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_HASH, key_size=4, value_size=1, max_entries=1, map_flags=0, inner_map_fd=0, map_name="cpu_filter", map_ifindex=0, btf_fd=3, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 5 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_HASH, key_size=4, value_size=1, max_entries=36, map_flags=0, inner_map_fd=0, map_name="task_filter", map_ifindex=0, btf_fd=3, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 6 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_ARRAY, key_size=4, value_size=8, max_entries=22, map_flags=0, inner_map_fd=0, map_name="latency", map_ifindex=0, btf_fd=3, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 7 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=12, max_entries=1, map_flags=BPF_F_MMAPABLE, inner_map_fd=0, map_name="func_lat.bss", map_ifindex=0, btf_fd=3, btf_key_type_id=0, btf_value_type_id=32, btf_vmlinux_value_type_id=0}, 128) = 8 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=8, key=0x7ffee1fee580, value=0x7f01d940a000, flags=BPF_ANY}, 128) = 0 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_KPROBE, insn_cnt=42, insns=0x1871f30, license="", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(5, 14, 16), prog_flags=0, prog_name="func_begin", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=3, func_info_rec_size=8, func_info=0x18746a0, func_info_cnt=1, line_info_rec_size=16, line_info=0x1874550, line_info_cnt=20, attach_btf_id=0, attach_prog_fd=0}, 128) = 9 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_KPROBE, insn_cnt=99, insns=0x18769b0, license="", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(5, 14, 16), prog_flags=0, prog_name="func_end", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=3, func_info_rec_size=8, func_info=0x188a640, func_info_cnt=1, line_info_rec_size=16, line_info=0x188a660, line_info_cnt=20, attach_btf_id=0, attach_prog_fd=0}, 128) = 10 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=6, key=0x7ffee1fee8e0, value=0x7ffee1fee8df, flags=BPF_ANY}, 128) = 0 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=2, insns=0x7ffee1fee3c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0}, 128) = 12 bpf(BPF_LINK_CREATE, {link_create={prog_fd=12, target_fd=-1, attach_type=0x29 /* BPF_??? */, flags=0}}, 128) = -1 EINVAL (Invalid argument) ^Cstrace: Process 1702285 detached # DURATION | COUNT | GRAPH | 0 - 1 us | 109 | ################# | 1 - 2 us | 127 | ################### | 2 - 4 us | 36 | ##### | 4 - 8 us | 20 | ### | 8 - 16 us | 2 | | 16 - 32 us | 0 | | 32 - 64 us | 0 | | 64 - 128 us | 0 | | 128 - 256 us | 0 | | 256 - 512 us | 0 | | 512 - 1024 us | 0 | | 1 - 2 ms | 0 | | 2 - 4 ms | 0 | | 4 - 8 ms | 0 | | 8 - 16 ms | 0 | | 16 - 32 ms | 0 | | 32 - 64 ms | 0 | | 64 - 128 ms | 0 | | 128 - 256 ms | 0 | | 256 - 512 ms | 0 | | 512 - 1024 ms | 0 | | 1 - ... s | 0 | | # Signed-off-by: Namhyung Kim <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Athira Jajeev <[email protected]> Cc: Changbin Du <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Song Liu <[email protected]> Cc: Stephane Eranian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-16perf ftrace: Add -b/--use-bpf option for latency subcommandNamhyung Kim4-0/+287
The -b/--use-bpf option is to use BPF to get latency info of kernel functions. It'd have better performance impact and I observed that latency of same function is smaller than before when using BPF. Committer testing: # strace -e bpf perf ftrace latency -b -T __handle_mm_fault -a sleep 1 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=2, insns=0x7fff51914e00, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0\20\0\0\0\20\0\0\0\5\0\0\0\1\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=45, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0000\0\0\0000\0\0\0\t\0\0\0\1\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=81, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\08\0\0\08\0\0\0\t\0\0\0\0\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=89, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0\f\0\0\0\f\0\0\0\7\0\0\0\1\0\0\0\0\0\0\20"..., btf_log_buf=NULL, btf_size=43, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0000\0\0\0000\0\0\0\t\0\0\0\1\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=81, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0000\0\0\0000\0\0\0\5\0\0\0\0\0\0\0\0\0\0\1"..., btf_log_buf=NULL, btf_size=77, btf_log_size=0, btf_log_level=0}, 128) = -1 EINVAL (Invalid argument) bpf(BPF_BTF_LOAD, {btf="\237\353\1\0\30\0\0\0\0\0\0\0\350\2\0\0\350\2\0\0\353\2\0\0\0\0\0\0\0\0\0\2"..., btf_log_buf=NULL, btf_size=1515, btf_log_size=0, btf_log_level=0}, 128) = 3 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=32, max_entries=1, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 4 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=5, insns=0x7fff51914c30, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0}, 128) = 5 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=4, max_entries=1, map_flags=BPF_F_MMAPABLE, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 4 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=2, insns=0x7fff51914a80, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="test", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0}, 128) = 4 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_HASH, key_size=8, value_size=8, max_entries=10000, map_flags=0, inner_map_fd=0, map_name="functime", map_ifindex=0, btf_fd=3, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 4 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_HASH, key_size=4, value_size=1, max_entries=1, map_flags=0, inner_map_fd=0, map_name="cpu_filter", map_ifindex=0, btf_fd=3, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 5 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_HASH, key_size=4, value_size=1, max_entries=1, map_flags=0, inner_map_fd=0, map_name="task_filter", map_ifindex=0, btf_fd=3, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 7 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_ARRAY, key_size=4, value_size=8, max_entries=22, map_flags=0, inner_map_fd=0, map_name="latency", map_ifindex=0, btf_fd=3, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0}, 128) = 8 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=4, max_entries=1, map_flags=BPF_F_MMAPABLE, inner_map_fd=0, map_name="func_lat.bss", map_ifindex=0, btf_fd=3, btf_key_type_id=0, btf_value_type_id=30, btf_vmlinux_value_type_id=0}, 128) = 9 bpf(BPF_MAP_UPDATE_ELEM, {map_fd=9, key=0x7fff51914c40, value=0x7f6e99be2000, flags=BPF_ANY}, 128) = 0 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_KPROBE, insn_cnt=18, insns=0x11e4160, license="", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(5, 14, 16), prog_flags=0, prog_name="func_begin", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=3, func_info_rec_size=8, func_info=0x11dfc50, func_info_cnt=1, line_info_rec_size=16, line_info=0x11e04c0, line_info_cnt=9, attach_btf_id=0, attach_prog_fd=0}, 128) = 10 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_KPROBE, insn_cnt=99, insns=0x11ded70, license="", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(5, 14, 16), prog_flags=0, prog_name="func_end", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=3, func_info_rec_size=8, func_info=0x11dfc70, func_info_cnt=1, line_info_rec_size=16, line_info=0x11f6e10, line_info_cnt=20, attach_btf_id=0, attach_prog_fd=0}, 128) = 11 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=2, insns=0x7fff51914a80, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0}, 128) = 13 bpf(BPF_LINK_CREATE, {link_create={prog_fd=13, target_fd=-1, attach_type=0x29 /* BPF_??? */, flags=0}}, 128) = -1 EINVAL (Invalid argument) --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1699992, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 bpf(BPF_MAP_LOOKUP_ELEM, {map_fd=8, key=0x7fff51914f84, value=0x11f6fa0, flags=BPF_ANY}, 128) = 0 # DURATION | COUNT | GRAPH | 0 - 1 us | 52 | ################### | 1 - 2 us | 36 | ############# | 2 - 4 us | 24 | ######### | 4 - 8 us | 7 | ## | 8 - 16 us | 1 | | 16 - 32 us | 0 | | 32 - 64 us | 0 | | 64 - 128 us | 0 | | 128 - 256 us | 0 | | 256 - 512 us | 0 | | 512 - 1024 us | 0 | | 1 - 2 ms | 0 | | 2 - 4 ms | 0 | | 4 - 8 ms | 0 | | 8 - 16 ms | 0 | | 16 - 32 ms | 0 | | 32 - 64 ms | 0 | | 64 - 128 ms | 0 | | 128 - 256 ms | 0 | | 256 - 512 ms | 0 | | 512 - 1024 ms | 0 | | 1 - ... s | 0 | | +++ exited with 0 +++ # Signed-off-by: Namhyung Kim <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Athira Jajeev <[email protected]> Cc: Changbin Du <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Song Liu <[email protected]> Cc: Stephane Eranian <[email protected]> Link: https://lore.kernel.org/r/[email protected] [ Add missing util/cpumap.h include and removed unused 'fd' variable ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-16perf arch: Support register names from all archsGerman Gomez4-24/+687
When reading a perf.data file with register values, there is a mismatch between the names and the values of the registers because the tool is built using only the register names from the local architecture. Reading a perf.data file that was recorded on ARM64, gives the following erroneous output on an X86 machine: # perf report -i perf_arm64.data -D [...] 24661932634451 0x698 [0x21d0]: PERF_RECORD_SAMPLE(IP, 0x1): 43239/43239: 0xffffc5be8f100f98 period: 1 addr: 0 ... user regs: mask 0x1ffffffff ABI 64-bit .... AX 0x0000ffffd1515817 .... BX 0x0000ffffd1515480 .... CX 0x0000aaaadabf6c80 .... DX 0x000000000000002e .... SI 0x0000000040100401 .... DI 0x0040600200000080 .... BP 0x0000ffffd1510e10 .... SP 0x0000000000000000 .... IP 0x00000000000000dd .... FLAGS 0x0000ffffd1510cd0 .... CS 0x0000000000000000 .... SS 0x0000000000000030 .... DS 0x0000ffffa569a208 .... ES 0x0000000000000000 .... FS 0x0000000000000000 .... GS 0x0000000000000000 .... R8 0x0000aaaad3de9650 .... R9 0x0000ffffa57397f0 .... R10 0x0000000000000001 .... R11 0x0000ffffa57fd000 .... R12 0x0000ffffd1515817 .... R13 0x0000ffffd1515480 .... R14 0x0000aaaadabf6c80 .... R15 0x0000000000000000 .... unknown 0x0000000000000001 .... unknown 0x0000000000000000 .... unknown 0x0000000000000000 .... unknown 0x0000000000000000 .... unknown 0x0000000000000000 .... unknown 0x0000ffffd1510d90 .... unknown 0x0000ffffa5739b90 .... unknown 0x0000ffffd1510d80 .... XMM0 0x0000ffffa57392c8 ... thread: perf-exec:43239 ...... dso: [kernel.kallsyms] As can be seen, the register names correspond to X86 registers, even though the perf.data file was recorded on an ARM64 system. After this patch, the output of the command displays the correct register names: # perf report -i perf_arm64.data -D [...] 24661932634451 0x698 [0x21d0]: PERF_RECORD_SAMPLE(IP, 0x1): 43239/43239: 0xffffc5be8f100f98 period: 1 addr: 0 ... user regs: mask 0x1ffffffff ABI 64-bit .... x0 0x0000ffffd1515817 .... x1 0x0000ffffd1515480 .... x2 0x0000aaaadabf6c80 .... x3 0x000000000000002e .... x4 0x0000000040100401 .... x5 0x0040600200000080 .... x6 0x0000ffffd1510e10 .... x7 0x0000000000000000 .... x8 0x00000000000000dd .... x9 0x0000ffffd1510cd0 .... x10 0x0000000000000000 .... x11 0x0000000000000030 .... x12 0x0000ffffa569a208 .... x13 0x0000000000000000 .... x14 0x0000000000000000 .... x15 0x0000000000000000 .... x16 0x0000aaaad3de9650 .... x17 0x0000ffffa57397f0 .... x18 0x0000000000000001 .... x19 0x0000ffffa57fd000 .... x20 0x0000ffffd1515817 .... x21 0x0000ffffd1515480 .... x22 0x0000aaaadabf6c80 .... x23 0x0000000000000000 .... x24 0x0000000000000001 .... x25 0x0000000000000000 .... x26 0x0000000000000000 .... x27 0x0000000000000000 .... x28 0x0000000000000000 .... x29 0x0000ffffd1510d90 .... lr 0x0000ffffa5739b90 .... sp 0x0000ffffd1510d80 .... pc 0x0000ffffa57392c8 ... thread: perf-exec:43239 ...... dso: [kernel.kallsyms] Tester comments: Athira reports: "Looks good to me. Tested this patchset in powerpc by capturing regs in powerpc and doing perf report to read the data from x86." Reported-by: Alexandre Truong <[email protected]> Reviewed-by: Athira Jajeev <[email protected]> Signed-off-by: German Gomez <[email protected]> Tested-by: Athira Jajeev <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-16perf arm64: Rename perf_event_arm_regs for ARM64 registersGerman Gomez1-0/+2
The registers for ARM and ARM64 are enumerated using two enums that have the same name. In order to be able to import both headers, the name of one can be replaced using the C preprocessor like so: #define perf_event_arm_regs perf_event_arm64_regs #include <asm/perf_regs.h> #undef perf_event_arm_regs This patch updates all imports of ARM64's perf_regs.h in order to prevent the naming collision. Reviewed-by: Athira Jajeev <[email protected]> Signed-off-by: German Gomez <[email protected]> Tested-by: Athira Jajeev <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Will Deacon <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-16perf namespaces: Add helper nsinfo__is_in_root_namespace()Leo Yan2-30/+48
Refactors code for gathering PID infos, it creates the function nsinfo__get_nspid() to parse process 'status' node in folder '/proc'. Base on the refactoring, this patch introduces a new helper nsinfo__is_in_root_namespace(), it returns true when the caller runs in the root PID namespace. Signed-off-by: Leo Yan <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Jin Yao <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Fastabend <[email protected]> Cc: John Garry <[email protected]> Cc: KP Singh <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Martin KaFai Lau <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Song Liu <[email protected]> Cc: Yonatan Goldschmidt <[email protected]> Cc: Yonghong Song <[email protected]> Cc: [email protected] Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-16perf bpf-loader: Use IS_ERR_OR_NULL() to clean code and fix checkMiaoqian Lin1-6/+9
Use IS_ERR_OR_NULL() to make the code cleaner. Also if the priv is NULL, it's improper to call PTR_ERR(priv). Signed-off-by: Miaoqian Lin <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Fastabend <[email protected]> Cc: KP Singh <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Martin KaFai Lau <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Song Liu <[email protected]> Cc: Yonghong Song <[email protected]> Cc: [email protected] Cc: [email protected] Cc: unlisted-recipients Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-16perf arm-spe: Add SPE total latency as PERF_SAMPLE_WEIGHTNamhyung Kim3-1/+7
Use total latency info in the SPE counter packet as sample weight so that we can see it in local_weight and (global) weight sort keys. Maybe we can use PERF_SAMPLE_WEIGHT_STRUCT to support ins_lat as well but I'm not sure which latency it matches. So just adding total latency first. Reviewed-by: Leo Yan <[email protected]> Signed-off-by: Namhyung Kim <[email protected]> Cc: Andi Kleen <[email protected]> Cc: German Gomez <[email protected]> Cc: Ian Rogers <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2021-12-16Merge remote-tracking branch 'torvalds/master' into perf/coreArnaldo Carvalho de Melo5-32/+64
To pick up fixes. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>