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2023-04-12perf pmu: Use perf_cpu_map__set_nr() in perf_pmu__cpus_match() to allow for ↵Arnaldo Carvalho de Melo1-2/+2
refcnt checking One more step to allow for checking reference counting, user after free, etc. Cc: Adrian Hunter <[email protected]> Cc: Alexey Bayduraev <[email protected]> Cc: Dmitriy Vyukov <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Stephen Brennan <[email protected]> Link: https://lore.kernel.org/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12libperf: Make perf_cpu_map__alloc() available as an internal function for ↵Ian Rogers1-1/+1
tools/perf to use We had the open coded equivalent in perf_cpu_map__empty_new(), so reuse what is in libperf. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexey Bayduraev <[email protected]> Cc: Dmitriy Vyukov <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Stephen Brennan <[email protected]> Link: https://lore.kernel.org/lkml/[email protected] [ Split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf cpumap: Use perf_cpu_map__nr(cpus) to access cpus->nrIan Rogers1-6/+6
So that we can have a single point where to refcount check 'struct perf_cpu_map' instances for use after free, etc. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexey Bayduraev <[email protected]> Cc: Dmitriy Vyukov <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Stephen Brennan <[email protected]> Link: https://lore.kernel.org/lkml/[email protected] [ Split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf map: Add map__refcnt() accessor to use in the maps testArnaldo Carvalho de Melo2-2/+7
To remove one more direct access to 'struct map' so that we can intecept accesses to its instantiations and refcount check it to catch use after free, etc. Cc: Adrian Hunter <[email protected]> Cc: Alexey Bayduraev <[email protected]> Cc: Dmitriy Vyukov <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Stephen Brennan <[email protected]> Link: https://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf scripts python intel-pt-events: Delete unused 'event_attr variableAlexander Pantyukhin1-3/+3
The 'event_attr' is never used later, the var is ok be deleted. Additional code simplification is to substitute string slice comparison with "substring" function. This case no need to know the length specific words. Signed-off-by: Alexander Pantyukhin <[email protected]> Acked-by: Adrian Hunter <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf top: Expand the range of multithreaded phaseHangliang Lai1-2/+2
In __cmd_top(), perf_set_multithreaded() is used to enable pthread_rwlock, thus down_read() and down_write () are not nops, handling concurrency problems Then 'perf top' uses perf_set_singlethreaded(), switching to the single threaded phase, assuming that no thread concurrency will happen later. However, a use after free problem could occur in the single threaded phase, the concurrent procedure is this: display_thread process_thread -------------- -------------- thread__comm_len -> thread__comm_str -> __thread__comm_str(thread) thread__delete -> comm__free -> comm_str__put -> zfree(&cs->str) -> thread->comm_len = strlen(comm); Since in single thread phase, perf_singlethreaded is true, down_read() and down_write() do nothing to avoid concurrency problems. This patch moves the perf_set_singlethreaded() call to the function tail to expand the multithreaded phase range, making display_thread() and process_thread() concurrency safe. Reviewed-by: Yunfeng Ye <[email protected]> Signed-off-by: Hangliang Lai <[email protected]> Co-developed-by: Wenyu Liu <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Feilong Lin <[email protected]> Cc: Hewenliang <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12tools headers: Remove s390 ptrace.h in check-headers.shTiezhu Yang1-1/+0
After commit 1f265d2aea0dff1f ("selftests/bpf: Remove not used headers"), tools/arch/s390/include/uapi/asm/ptrace.h has been removed, so remove it in check-headers.sh too, otherwise we can see the following build warning: diff: tools/arch/s390/include/uapi/asm/ptrace.h: No such file or directory Fixes: 1f265d2aea0dff1f ("selftests/bpf: Remove not used headers") Reported-by: kernel test robot <[email protected]> Signed-off-by: Tiezhu Yang <[email protected]> Acked-by: Daniel Borkmann <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Tiezhu Yang <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/oe-kbuild-all/[email protected]/ Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf pmu: zfree() expects a pointer to a pointer to zero it after freeing ↵Arnaldo Carvalho de Melo1-1/+1
its contents An audit showed just this one problem with zfree(), fix it. Fixes: 9fbc61f832ebf432 ("perf pmu: Add support for PMU capabilities") Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf metricgroups: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-9/+9
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. This file already used zfree() in other places, so this just plugs some leftovers. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf arm-spe: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-1/+1
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf tests api-io: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-1/+2
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf bench inject-buildid: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-1/+2
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf genelf: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-1/+2
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf evlist: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-2/+2
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf annotate: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-1/+2
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Also include the missing linux/zalloc.h header directive. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf parse-events: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-1/+1
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Also remove one NULL test before free(), as it accepts a NULL arg and we get one line shaved not doing it explicitely. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf expr: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-7/+7
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Also remove one NULL test before free(), as it accepts a NULL arg and we get one line shaved not doing it explicitely. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf evsel: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-3/+2
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Also remove one NULL test before free(), as it accepts a NULL arg and we get one line shaved not doing it explicitely. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf pmu: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-8/+7
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf env: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-1/+1
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf x86 iostat: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-3/+4
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf symbol: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-2/+2
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf list: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-2/+2
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf c2c: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-7/+7
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf trace: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-4/+4
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf daemon: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-7/+7
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf inject: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo1-3/+3
Do defensive programming by using zfree() to initialize freed pointers to NULL, so that eventual use after free result in a NULL pointer deref instead of more subtle behaviour. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf vendor events: Update icelakex to v1.20Ian Rogers2-2/+2
Update from v1.19 to v1.20 affecting the uncore UNC_CHA_CORE_SNP.REMOTE_GTONE event's umask. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[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]> Cc: Xing Zhengjun <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-12perf vendor events: Update alderlake to v1.20Ian Rogers3-4/+7
Update from v1.19 to v1.20 affecting the performance/goldencove events. Adds cmask=1 for ARITH.IDIV_ACTIVE, and updates event descriptions. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[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]> Cc: Xing Zhengjun <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-11perf bperf: Avoid use after free via unrelated 'struct evsel' anonymous ↵Ian Rogers1-0/+1
union field If bperf (perf tools that use BPF skels) sets evsel->leader_skel or evsel->follower_skel then it appears that evsel->bpf_skel is set and can trigger the following use-after-free: ==13575==ERROR: AddressSanitizer: heap-use-after-free on address 0x60c000014080 at pc 0x55684b939880 bp 0x7ffdfcf30d70 sp 0x7ffdfcf30d68 READ of size 8 at 0x60c000014080 thread T0 #0 0x55684b93987f in sample_filter_bpf__destroy tools/perf/bpf_skel/sample_filter.skel.h:44:11 #1 0x55684b93987f in perf_bpf_filter__destroy tools/perf/util/bpf-filter.c:155:2 #2 0x55684b98f71e in evsel__exit tools/perf/util/evsel.c:1521:2 #3 0x55684b98a352 in evsel__delete tools/perf/util/evsel.c:1547:2 #4 0x55684b981918 in evlist__purge tools/perf/util/evlist.c:148:3 #5 0x55684b981918 in evlist__delete tools/perf/util/evlist.c:169:2 #6 0x55684b887d60 in cmd_stat tools/perf/builtin-stat.c:2598:2 .. 0x60c000014080 is located 0 bytes inside of 128-byte region [0x60c000014080,0x60c000014100) freed by thread T0 here: #0 0x55684b780e86 in free compiler-rt/lib/asan/asan_malloc_linux.cpp:52:3 #1 0x55684b9462da in bperf_cgroup_bpf__destroy tools/perf/bpf_skel/bperf_cgroup.skel.h:61:2 #2 0x55684b9462da in bperf_cgrp__destroy tools/perf/util/bpf_counter_cgroup.c:282:2 #3 0x55684b944c75 in bpf_counter__destroy tools/perf/util/bpf_counter.c:819:2 #4 0x55684b98f716 in evsel__exit tools/perf/util/evsel.c:1520:2 #5 0x55684b98a352 in evsel__delete tools/perf/util/evsel.c:1547:2 #6 0x55684b981918 in evlist__purge tools/perf/util/evlist.c:148:3 #7 0x55684b981918 in evlist__delete tools/perf/util/evlist.c:169:2 #8 0x55684b887d60 in cmd_stat tools/perf/builtin-stat.c:2598:2 ... previously allocated by thread T0 here: #0 0x55684b781338 in calloc compiler-rt/lib/asan/asan_malloc_linux.cpp:77:3 #1 0x55684b944e25 in bperf_cgroup_bpf__open_opts tools/perf/bpf_skel/bperf_cgroup.skel.h:73:35 #2 0x55684b944e25 in bperf_cgroup_bpf__open tools/perf/bpf_skel/bperf_cgroup.skel.h:97:9 #3 0x55684b944e25 in bperf_load_program tools/perf/util/bpf_counter_cgroup.c:55:9 #4 0x55684b944e25 in bperf_cgrp__load tools/perf/util/bpf_counter_cgroup.c:178:23 #5 0x55684b889289 in __run_perf_stat tools/perf/builtin-stat.c:713:7 #6 0x55684b889289 in run_perf_stat tools/perf/builtin-stat.c:949:8 #7 0x55684b888029 in cmd_stat tools/perf/builtin-stat.c:2537:12 Resolve by clearing 'evsel->bpf_skel' as part of bpf_counter__destroy(). Suggested-by: Namhyung Kim <[email protected]> Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf evsel: Avoid SEGV if delete is called on NULLIan Rogers1-0/+3
Seen in "perf stat --bpf-counters --for-each-cgroup test" running in a container: libbpf: Failed to bump RLIMIT_MEMLOCK (err = -1), you might need to do it explicitly! libbpf: Error in bpf_object__probe_loading():Operation not permitted(1). Couldn't load trivial BPF program. Make sure your kernel supports BPF (CONFIG_BPF_SYSCALL=y) and/or that RLIMIT_MEMLOCK is set to big enough value. libbpf: failed to load object 'bperf_cgroup_bpf' libbpf: failed to load BPF skeleton 'bperf_cgroup_bpf': -1 Failed to load cgroup skeleton #0 0x55f28a650981 in list_empty tools/include/linux/list.h:189 #1 0x55f28a6593b4 in evsel__exit util/evsel.c:1518 #2 0x55f28a6596af in evsel__delete util/evsel.c:1544 #3 0x55f28a89d166 in bperf_cgrp__destroy util/bpf_counter_cgroup.c:283 #4 0x55f28a899e9a in bpf_counter__destroy util/bpf_counter.c:816 #5 0x55f28a659455 in evsel__exit util/evsel.c:1520 #6 0x55f28a6596af in evsel__delete util/evsel.c:1544 #7 0x55f28a640d4d in evlist__purge util/evlist.c:148 #8 0x55f28a640ea6 in evlist__delete util/evlist.c:169 #9 0x55f28a4efbf2 in cmd_stat tools/perf/builtin-stat.c:2598 #10 0x55f28a6050c2 in run_builtin tools/perf/perf.c:330 #11 0x55f28a605633 in handle_internal_command tools/perf/perf.c:384 #12 0x55f28a6059fb in run_argv tools/perf/perf.c:428 #13 0x55f28a6061d3 in main tools/perf/perf.c:562 Signed-off-by: Ian Rogers <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Florian Fischer <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf script ibs: Change bit description according to latest AMD PPR ↵Ravi Bangoria1-7/+7
("Processor Programming Reference") Some of the IBS_OP_DATA2 bit descriptions were stale (taken from old version of PPR). Change it according to latest PPR. Signed-off-by: Ravi Bangoria <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Ananth Narayan <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Sandipan Das <[email protected]> Cc: Santosh Shukla <[email protected]> Cc: Stephane Eranian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf mem: Increase HISTC_MEM_LVL column size to 39 charsRavi Bangoria1-1/+1
39 is taken from the length of longest printable new API string: "Remote socket, same board Any cache hit". Although, using old API can result into even longer strings, let's not overkill by making it dynamic length. Signed-off-by: Ravi Bangoria <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Ananth Narayan <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Sandipan Das <[email protected]> Cc: Santosh Shukla <[email protected]> Cc: Stephane Eranian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf mem: Refactor perf_mem__lvl_scnprintf() to process 'union ↵Ravi Bangoria1-42/+47
perf_mem_data_src' more intuitively Interpretation of 'union perf_mem_data_src' by perf_mem__lvl_scnprintf() is non-intuitive. For ex, it ignores 'mem_lvl' when 'mem_hops' is set but considers it otherwise. It prints both 'mem_lvl_num' and 'mem_lvl' when 'mem_hops' is not set. Refactor this function such that it behaves more intuitively: Use new API 'mem_lvl_num'|'mem_remote'|'mem_hops' if 'mem_lvl_num' contains value other than PERF_MEM_LVLNUM_NA. Otherwise, fallback to old API 'mem_lvl'. Since new API has no way to indicate MISS, use it from old api, otherwise don't club old and new APIs while parsing as well as printing. Before: $ sudo ./perf mem report -F sample,mem --stdio # Samples Memory access # ............ ........................ # 250097 N/A 188907 L1 hit 4116 L2 hit 3496 Remote Cache (1 hop) hit 3271 Remote Cache (2 hops) hit 873 L3 hit 598 Local RAM hit 438 Remote RAM (1 hop) hit 1 Uncached hit After: $ sudo ./perf mem report -F sample,mem --stdio # Samples Memory access # ............ ....................................... # 255517 N/A 189989 L1 hit 4541 L2 hit 3363 Remote core, same node Any cache hit 3336 Remote node, same socket Any cache hit 1275 L3 hit 743 RAM hit 545 Remote node, same socket RAM hit 4 Uncached hit Signed-off-by: Ravi Bangoria <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Ananth Narayan <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Sandipan Das <[email protected]> Cc: Santosh Shukla <[email protected]> Cc: Stephane Eranian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf mem: Add support for printing PERF_MEM_LVLNUM_UNCRavi Bangoria1-0/+1
Add support for printing PERF_MEM_LVLNUM_UNC in perf mem report. Signed-off-by: Ravi Bangoria <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Ananth Narayan <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Sandipan Das <[email protected]> Cc: Santosh Shukla <[email protected]> Cc: Stephane Eranian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf mem: Add PERF_MEM_LVLNUM_NA to PERF_MEM_DATA_SRC_NONERavi Bangoria1-1/+2
Add PERF_MEM_LVLNUM_NA wherever PERF_MEM_DATA_SRC_NONE is used to set default values. Signed-off-by: Ravi Bangoria <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Ananth Narayan <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Sandipan Das <[email protected]> Cc: Santosh Shukla <[email protected]> Cc: Stephane Eranian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf build: Warn for BPF skeletons if endian mismatchesIan Rogers1-7/+10
Done as a warning as I'm not fully confident of the test's robustness of comparing the macro definition of __BYTE_ORDER__. v2. Is a rebase following patch 1 being merged. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Ian Rogers <[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]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf util: Move perf_guest/host declarationsIan Rogers11-10/+12
The definitions are in util.c so move the declarations to match. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Athira Rajeev <[email protected]> Cc: Chengdong Li <[email protected]> Cc: Denis Nikitin <[email protected]> Cc: Florian Fischer <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Martin Liška <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Raul Silvera <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: Rob Herring <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Will Deacon <[email protected]> Cc: Xing Zhengjun <[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]>
2023-04-10perf util: Move input_name to utilIan Rogers16-14/+16
'input_name' is the name of the input perf.data file, it is used by data convert and ui code. Move it to util to make it more consistent with other global state. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Athira Rajeev <[email protected]> Cc: Chengdong Li <[email protected]> Cc: Denis Nikitin <[email protected]> Cc: Florian Fischer <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Martin Liška <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Raul Silvera <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: Rob Herring <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Will Deacon <[email protected]> Cc: Xing Zhengjun <[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]>
2023-04-10perf version: Use regular verbose flagIan Rogers3-5/+3
Remove additional version_verbose flag by using the existing verbose variable. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Athira Rajeev <[email protected]> Cc: Chengdong Li <[email protected]> Cc: Denis Nikitin <[email protected]> Cc: Florian Fischer <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Martin Liška <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Raul Silvera <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: Rob Herring <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Will Deacon <[email protected]> Cc: Xing Zhengjun <[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]>
2023-04-10perf header: Move perf_version_string declarationIan Rogers3-2/+3
Move to match the definition in header.c. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Athira Rajeev <[email protected]> Cc: Chengdong Li <[email protected]> Cc: Denis Nikitin <[email protected]> Cc: Florian Fischer <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Martin Liška <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Raul Silvera <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: Rob Herring <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Will Deacon <[email protected]> Cc: Xing Zhengjun <[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]>
2023-04-10perf usage: Move usage stringsIan Rogers5-9/+10
The usage function is part of util.h, move the usage strings there too. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Athira Rajeev <[email protected]> Cc: Chengdong Li <[email protected]> Cc: Denis Nikitin <[email protected]> Cc: Florian Fischer <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Martin Liška <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Raul Silvera <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: Rob Herring <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Will Deacon <[email protected]> Cc: Xing Zhengjun <[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]>
2023-04-10perf ui: Move window resize signal functionsIan Rogers5-21/+22
Move under tools/perf/ui rather than in perf.c. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Athira Rajeev <[email protected]> Cc: Chengdong Li <[email protected]> Cc: Denis Nikitin <[email protected]> Cc: Florian Fischer <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Martin Liška <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Mike Leach <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Raul Silvera <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: Rob Herring <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Will Deacon <[email protected]> Cc: Xing Zhengjun <[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]>
2023-04-10perf test stat+json_output: Write JSON output to a fileIan Rogers2-13/+38
Write the JSON output to a file, then sanity check this output. This avoids problems with debug/warning/error output corrupting the file format. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Athira Rajeev <[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: Sumanth Korikkar <[email protected]> Cc: Thomas Richter <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf stat: Don't write invalid "started on" comment for JSON outputIan Rogers1-2/+4
JSON files don't support comments. Disable the "started on" comment when writing json output to file. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Athira Rajeev <[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: Sumanth Korikkar <[email protected]> Cc: Thomas Richter <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf test stat+csv_output: Write CSV output to a fileIan Rogers1-16/+42
Write the CSV output to a file, then sanity check this output. This avoids problems with debug/warning/error output corrupting the file format. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Athira Rajeev <[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: Sumanth Korikkar <[email protected]> Cc: Thomas Richter <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf bpf filter: Support pre-5.16 kernels where 'mem_hops' isn't in 'union ↵Ian Rogers1-2/+26
perf_mem_data_src' The 'mem_hops' bits were added in 5.16 with no prior equivalent. Signed-off-by: Ian Rogers <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-10perf lock contention: Support pre-5.14 kernelsIan Rogers1-1/+14
'struct rq's member '__lock' was renamed from 'lock' in 5.14. Signed-off-by: Ian Rogers <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2023-04-08ELF: fix all "Elf" typosAlexey Dobriyan1-1/+1
ELF is acronym and therefore should be spelled in all caps. I left one exception at Documentation/arm/nwfpe/nwfpe.rst which looks like being written in the first person. Link: https://lkml.kernel.org/r/Y/3wGWQviIOkyLJW@p183 Signed-off-by: Alexey Dobriyan <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2023-04-06perf map: Changes to reference countingIan Rogers11-44/+112
When a pointer to a map exists do a get, when that pointer is overwritten or freed, put the map. This avoids issues with gets and puts being inconsistently used causing, use after puts, etc. For example, the map in struct addr_location is changed to hold a reference count. Reference count checking and address sanitizer were used to identify issues. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alexey Bayduraev <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Andy Shevchenko <[email protected]> Cc: Darren Hart <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Dmitriy Vyukov <[email protected]> Cc: Eric Dumazet <[email protected]> Cc: German Gomez <[email protected]> Cc: Hao Luo <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[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: Madhavan Srinivasan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Miaoqian Lin <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Riccardo Mancini <[email protected]> Cc: Shunsuke Nakamura <[email protected]> Cc: Song Liu <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Stephen Brennan <[email protected]> Cc: Steven Rostedt (VMware) <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Thomas Richter <[email protected]> Cc: Yury Norov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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