| Age | Commit message (Collapse) | Author | Files | Lines |
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Move the mapping code into a separate reader__mmap() function.
Suggested-by: Jiri Olsa <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/e445de5bb85bbd91287986802d6ed0ce1b419b5a.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Separate init/release code into reader__init() and reader__release_decomp()
functions.
Remove a duplicate call to ui_progress__init_size(), the same call can
be found in __perf_session__process_events().
For multiple traces ui_progress should be initialized by total size
before reader__init() calls.
Suggested-by: Jiri Olsa <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/8bacf247de220be8e57af1d2b796322175f5e257.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Introduce a decompressor data structure with pointers to decomp
objects and to zstd object.
We cannot just move session->zstd_data to decomp_data as
session->zstd_data is not only used for decompression.
Adding decompressor data object to reader object and introducing
active_decomp into perf_session object to select current decompressor.
Thus decompression could be executed separately for each data file.
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/0eee270cb52aebcbd029c8445d9009fd17709d53.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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We need all the state info about reader in separate object to load data
from multiple files, so we can keep multiple readers at the same time.
Moving all items that need to be kept from reader__process_events to
the reader object. Introducing mmap_cur to keep current mapping.
Suggested-by: Jiri Olsa <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/5c7bdebfaadd7fcb729bd999b181feccaa292e8e.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Originally, software only supported redirecting at most one PEBS event to
Intel PT (PEBS-via-PT) because it was not able to differentiate one event
from another. To overcome that, add support for the
PERF_RECORD_AUX_OUTPUT_HW_ID side-band event.
Committer notes:
Cast the pointer arg to for_each_set_bit() to (unsigned long *), to fix
the build on 32-bit systems.
Reviewed-by: Alexander Shishkin <[email protected]>
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[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]>
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Replace the call to btf__get_raw_data with new API btf__raw_data.
The old APIs will be deprecated in libbpf v0.7+. No functionality
change.
Signed-off-by: Hengqi Chen <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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The PERF_RECORD_AUX_OUTPUT_HW_ID event provides a way to match AUX output
data like Intel PT PEBS-via-PT back to the event that it came from, by
providing a hardware ID that is present in the AUX output.
Reviewed-by: Alexander Shishkin <[email protected]>
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[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]>
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This is so they are categorised in the perf list output. The pmus all
exist in the armv8-common-and-microarch.json and arm-recommended.json
files, so this commit places them into each category's own file under
tools/perf/pmu-events/arch/arm64/arm/neoverse-v1
Also add the Neoverse V1 to the arm64 mapfile
Reviewed-by: John Garry <[email protected]>
Signed-off-by: Andrew Kilroy <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[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]>
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Add new armv8 common events for use by Arm Neoverse V1 cores in a later
commit. These are defined in the ArmV8 architecture reference manual
available from
https://developer.arm.com/documentation/ddi0487/gb/?lang=en
Reviewed-by: John Garry <[email protected]>
Signed-off-by: Andrew Kilroy <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[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]>
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There are some syntactical mistakes in the json files for the Cortex A76
N1 (Neoverse N1). This was obstructing parsing from an external tool.
This patch fixes the erroneous placement of commas causing the problems.
Reviewed-by: John Garry <[email protected]>
Signed-off-by: Andrew Kilroy <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[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]>
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By allowing modifiers on metrics we can, for example, gather the
same metric for kernel and user mode. On a SkylakeX with
TopDownL1 this gives:
$ perf stat -M TopDownL1:u,TopDownL1:k -a sleep 2
Performance counter stats for 'system wide':
849,855,577 uops_issued.any:k # 0.06 Bad_Speculation:k
# 0.51 Backend_Bound:k (16.71%)
1,995,257,996 cycles:k
# 7981031984.00 SLOTS:k
# 0.35 Frontend_Bound:k
# 0.08 Retiring:k (16.71%)
2,791,940,753 idq_uops_not_delivered.core:k (16.71%)
641,961,928 uops_retired.retire_slots:k (16.71%)
72,239,337 int_misc.recovery_cycles:k (16.71%)
2,294,413,647 uops_issued.any:u # 0.04 Bad_Speculation:u
# 0.39 Backend_Bound:u (16.78%)
1,333,248,940 cycles:u
# 5332995760.00 SLOTS:u
# 0.16 Frontend_Bound:u
# 0.40 Retiring:u (16.78%)
858,517,081 idq_uops_not_delivered.core:u (16.78%)
2,153,789,582 uops_retired.retire_slots:u (16.78%)
19,373,627 int_misc.recovery_cycles:u (16.78%)
31,503,661 cpu_clk_unhalted.one_thread_active:k # 0.18 CoreIPC_SMT:k (16.73%)
315,454,104 inst_retired.any:k # 315454104.00 Instructions:k (16.73%)
42,533,729 cpu_clk_unhalted.ref_xclk:k (16.73%)
2,043,119,037 cpu_clk_unhalted.thread:k (16.73%)
28,843,803 cpu_clk_unhalted.one_thread_active:u # 1.55 CoreIPC_SMT:u (16.60%)
2,153,353,869 inst_retired.any:u # 2153353869.00 Instructions:u (16.60%)
28,844,743 cpu_clk_unhalted.ref_xclk:u (16.60%)
1,387,544,378 cpu_clk_unhalted.thread:u (16.60%)
308,031,603 inst_retired.any:k # 0.15 CoreIPC:k (33.19%)
2,036,774,753 cycles:k (33.19%)
1,994,344,281 inst_retired.any:u # 1.59 CoreIPC:u (33.18%)
1,251,538,227 cycles:u (33.18%)
2.000342948 seconds time elapsed
Modifiers are naively copy and pasted on to events, this can yield errors like:
$ perf stat -M Kernel_Utilization:k -a sleep 2
event syntax error: '..d.thread:k/kk,cpu_clk_unhalted.thread/metric-id=cpu_clk_unhalted.thread/k..'
\___ Bad modifier
Usage: perf stat [<options>] [<command>]
-M, --metrics <metric/metric group list>
monitor specified metrics or metric groups (separated by ,)
When modifiers are present with constraints, from --metric-no-group or
the NMI watchdog, they are no longer placed in the same set - which may
miss deduplicating events.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Previously the broken modifier causes a usage message to printed but
nothing else.
After:
$ perf stat -e 'cycles:kk' -a sleep 2
event syntax error: 'cycles:kk'
\___ Bad modifier
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
$ perf stat -e '{instructions,cycles}:kk' -a sleep 2
event syntax error: '..ns,cycles}:kk'
\___ Bad modifier
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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There's no clear reason for the inconsistency that stems from the
initial commit.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Previously find_evsel_group was trying to share events while
mark-sweeping to eliminate unused events, this was complicated and had
issues around uncore events and grouped sharing.
This was further complicated by the event string being created while
metrics and metric groups were being added, with the string affecting
the evlist order.
This change moves deduplication before event parsing. Ungrouped events
are placed in a single combined set. Groups are checked to see if an
earlier (larger) group can support their events.
As the deduplication and sharing detection is done on metric IDs before
parsing, wildcard expansion problems with uncore events are avoided.
Overall the code is simpler while working better.
An example of failing to deduplicate can be seen with a list of metrics
like the following, where in the after case multiplexing has been
avoided:
Before:
$ perf stat -M Bad_Speculation,Backend_Bound,Frontend_Bound,Retiring -a sleep 2
Performance counter stats for 'system wide':
959,620,872 uops_issued.any # 0.06 Bad_Speculation (50.03%)
2,163,072,261 cycles
# 0.09 Retiring (50.03%)
735,827,436 uops_retired.retire_slots (50.03%)
74,676,484 int_misc.recovery_cycles (50.03%)
987,062,794 uops_issued.any # 0.50 Backend_Bound (49.97%)
2,203,734,187 cycles
# 0.35 Frontend_Bound (49.97%)
3,085,016,091 idq_uops_not_delivered.core (49.97%)
758,599,232 uops_retired.retire_slots (49.97%)
75,807,526 int_misc.recovery_cycles (49.97%)
2.002103760 seconds time elapsed
After:
$ sudo perf stat -M Bad_Speculation,Backend_Bound,Frontend_Bound,Retiring -a sleep 2
Performance counter stats for 'system wide':
769,694,676 uops_issued.any # 0.08 Bad_Speculation
# 0.41 Backend_Bound
1,087,548,633 cycles
# 0.38 Frontend_Bound
# 0.14 Retiring
1,642,085,777 idq_uops_not_delivered.core
603,112,590 uops_retired.retire_slots
43,787,854 int_misc.recovery_cycles
2.003844383 seconds time elapsed
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a helper that returns true if all the IDs in needles are present in
haystack.
Later this will be used in sharing events between metrics.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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For a metric like IPC a group of events like {instructions,cycles}:W
would be formed.
If the events names were changed in parsing then the metric expression
parser would fail to find them.
This change makes the event encoding be something like:
{instructions/metric-id=instructions/, cycles/metric-id=cycles/}
and then uses the evsel's stable metric-id value to locate the events.
This fixes the case that an event is restricted to user because of the
paranoia setting:
$ echo 2 > /proc/sys/kernel/perf_event_paranoid
$ perf stat -M IPC /bin/true
Performance counter stats for '/bin/true':
150,298 inst_retired.any:u # 0.77 IPC
187,095 cpu_clk_unhalted.thread:u
0.002042731 seconds time elapsed
0.000000000 seconds user
0.002377000 seconds sys
Adding the metric-id as a qualifier has a complication in that
qualifiers will become embedded in qualifiers.
For example, msr/tsc/ could become msr/tsc,metric-id=msr/tsc// which
will fail parse-events.
To solve this problem the metric is encoded and decoded for the
metric-id with !<num> standing in for an encoded value.
Previously ! wasn't parsed.
With this msr/tsc/ becomes msr/tsc,metric-id=msr!3tsc!3/
The metric expression parser is changed so that @ isn't changed to /,
instead this is done when the ID is encoded for parse events.
metricgroup__add_metric_non_group() and metricgroup__add_metric_weak_group()
need to inject the metric-id qualifier, so to avoid repetition they are
merged into a single metricgroup__build_event_string with error codes
more rigorously checked.
stat-shadow's prepare_metric() uses the metric-id to match the metricgroup
code.
As "metric-id=..." is added to all events, it is adding during testing
with the fake PMU.
This complicates pmu_str_check code as PE_PMU_EVENT_FAKE won't match as
part of a configuration.
The testing fake PMU case is fixed so that if a known qualifier with an
! is parsed then it isn't reported as a fake PMU.
This is sufficient to pass all testing but it and the original mechanism
are somewhat brittle.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
An event like inst_retired.any on an Intel skylake is found in the
pmu-events code created from the pipeline event JSON.
The event is an alias for cpu/event=0xc0,period=2000003/ and
parse-events recognizes the event with the token PE_KERNEL_PMU_EVENT.
The parser doesn't currently allow extra configuration on such events,
except for modifiers, so:
$ perf stat -e inst_retired.any// /bin/true
event syntax error: 'inst_retired.any//'
\___ parser error
Run 'perf list' for a list of valid events
Usage: perf stat [<options>] [<command>]
-e, --event <event> event selector. use 'perf list' to list available events
This patch adds configuration to these events which can be useful for a
number of parameters like name and call-graph:
$ sudo perf record -e inst_retired.any/call-graph=lbr/ -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 1.856 MB perf.data (44 samples) ]
It is necessary for the metric code so that we may add metric-id values
to these events before they are parsed.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Add a new "metric-id" term to events so that metric parsing can set an
ID that can be reliably looked up.
Metric parsing currently will turn a metric like "instructions/cycles"
into a parse events string of "{instructions,cycles}:W".
However, parse-events may change "instructions" into "instructions:u" if
perf_event_paranoid=2.
When this happens expr__resolve_id currently fails as stat-shadow adds
the ID "instructions:u" to match with the counter value and the metric
tries to look up the ID just "instructions".
A later patch will use the new term.
An example of the current problem:
$ echo -1 > /proc/sys/kernel/perf_event_paranoid
$ perf stat -M IPC /bin/true
Performance counter stats for '/bin/true':
1,217,161 inst_retired.any # 0.97 IPC
1,250,389 cpu_clk_unhalted.thread
0.002064773 seconds time elapsed
0.002378000 seconds user
0.000000000 seconds sys
$ echo 2 > /proc/sys/kernel/perf_event_paranoid
$ perf stat -M IPC /bin/true
Performance counter stats for '/bin/true':
150,298 inst_retired.any:u # nan IPC
187,095 cpu_clk_unhalted.thread:u
0.002042731 seconds time elapsed
0.000000000 seconds user
0.002377000 seconds sys
Note: nan IPC is printed as an effect of "perf metric: Use NAN for
missing event IDs." but earlier versions of perf just fail with a parse
error and display no value.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The evsel name is strdup-ed before assignment and so can be const.
A later change will add another similar string.
Using const makes it clearer that these are not out arguments.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Don't build a list and then turn to an array, just directly build the
array.
The size of the array is known due to the search for a duplicate.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Add documentation as part of code tidying.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Document the data structures maintained by metricgroup.c and used by
stat-shadow.c for metric output.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Modify resolution. Rather than resolving a list of metrics, resolve a
metric immediately after it is added.
This simplifies knowing the root of the metric's tree so that IDs may be
associated with it.
A bug in the current implementation is that all the IDs were placed on
the first metric in a metric group.
Rather than maintain data on IDs' parents to detect cycles, maintain
a list of visited metrics and detect cycles if the same metric is
visited twice.
Only place the root metric onto the list of metrics.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
If a metric references other metrics then the same other metrics may be
referenced more than once, but the events and metric ref are only needed
once.
An example of this is in tests/parse-metric.c where DCache_L2_Hits
references the metric DCache_L2_All_Hits twice, once directly and once
through DCache_L2_All.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Metrics are complex enough that a new/free reduces the risk of memory
leaks. Move static functions used in new.
Reviewed-by: John Garry <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Documentation to make current functionality clearer.
Rename a variable called 'metric' to 'metric_name' as it can be
ambiguous as to whether a string is the name of a metric or the
expression.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The runtime value is needed when recursively parsing metrics, currently
a value of 1 is passed which is incorrect.
Rather than add more arguments to the bison parser, add runtime to the
context.
Fix call sites not to pass a value. The runtime value is defaulted to 0,
which is arbitrary. In some places this replaces a value of 1, which was
also arbitrary.
This shouldn't affect anything other than PPC.
The use of 0 or 1 shouldn't matter as a proper runtime value would be
needed in a case that it did matter.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Make lookup nature of data structures clearer through their type. Reduce
scope of architecture specific pmu_event tables by making them static.
Suggested-by: John Garry <[email protected]>
Reviewed-by: John Garry <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Make lookup nature of data structures clearer through their type.
Reviewed-by: John Garry <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The pmu_events_map is generated at compile time and used for lookup. For
testing purposes we need to swap the map being used.
Having the pmu_events_map be non-const is misleading as it may be an out
argument.
Make it const and update uses so they work on const too.
Reviewed-by: John Garry <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add list_sort.[ch] from the main kernel tree. The linux/bug.h #include
is removed due to conflicting definitions. Add check-headers and modify
perf build accordingly.
MANIFEST and python-ext-sources fixes suggested by Arnaldo.
Suggested-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andrew Kilroy <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Denys Zagorui <[email protected]>
Cc: Fabian Hemmer <[email protected]>
Cc: Felix Fietkau <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jacob Keller <[email protected]>
Cc: Jiapeng Chong <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kees Kook <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nicholas Fraser <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: ShihCheng Tu <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Wan Jiabing <[email protected]>
Cc: Zhen Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Going forward, future generation systems can have more hierarchy
within the node/package level but currently we don't have any data source
encoding field in perf, which can be used to represent this level of data.
Add a new field called 'mem_hops' in the perf_mem_data_src structure
which can be used to represent intra-node/package or inter-node/off-package
details. This field is of size 3 bits where PERF_MEM_HOPS_{NA, 0..6} value
can be used to present different hop levels data.
Also add corresponding macros to define mem_hop field values
and shift value.
Currently we define macro for HOPS_0 which corresponds
to data coming from another core but same node.
Add functionality to represent mem_hop field data in
perf_mem__lvl_scnprintf function with the help of added string
array called mem_hops.
For ex: Encodings for mem_hops fields with L2 cache:
L2 - local L2
L2 | REMOTE | HOPS_0 - remote core, same node L2
Since with the addition of HOPS field, now remote can be used to
denote cache access from the same node but different core, a check
is added in the c2c_decode_stats function to set mrem only when HOPS
is zero along with set remote field.
Signed-off-by: Kajol Jain <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
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an extra line
Add a comment about PERF_MEM_LVL_* namespace being depricated
to some extent in favour of added PERF_MEM_{LVLNUM_,REMOTE_,SNOOPX_}
fields.
Remove an extra line present in perf_mem__lvl_scnprintf function.
Signed-off-by: Kajol Jain <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Print offset of PERF_RECORD_COMPRESSED record instead of zero for
decompressed records in raw trace dump (-D option of perf-report):
0x17cf08 [0x28]: event: 9
instead of:
0 [0x28]: event: 9
The fix is not critical, because currently file_pos for compressed
events is used in perf_session__process_event only to show offsets
in the raw dump.
This patch was separated from patchset:
https://lore.kernel.org/lkml/[email protected]/
and was already rewieved.
Reviewed-by: Riccardo Mancini <[email protected]>
Signed-off-by: Alexey Bayduraev <[email protected]>
Tested-by: Riccardo Mancini <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Antonov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Budankov <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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Since:
https://lore.kernel.org/lkml/[email protected]/
The output option works for 'perf kmem', however, it must appear after
'record'. This is different to 'stat' where '-i' for the input must
appear before. Try to capture this complication in the man page.
Signed-off-by: Ian Rogers <[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: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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This is to ensure that the PMU event files can always be parsed by
other tools.
Testing
=======
* There are no errors when parsing files for all architectures:
# pmu-events/jevents nds32 pmu-events/arch/ test
# pmu-events/jevents s390 pmu-events/arch/ test
# pmu-events/jevents powerpc pmu-events/arch/ test
# pmu-events/jevents arm64 pmu-events/arch/ test
# pmu-events/jevents test pmu-events/arch/ test
# pmu-events/jevents x86 pmu-events/arch/ test
* Trailing and leading commas now cause a parse error
* Double commas now cause a parse error
* Compilation and parsing works with strict mode disabled and enabled
* A diff of the output files shows no changes
Reviewed-by: Andi Kleen <[email protected]>
Reviewed-by: Kajol Jain<[email protected]>
Signed-off-by: James Clark <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: [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: [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]>
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Return an error when a trailing comma is found or a new item is
encountered before a comma or an opening brace. This ensures that the
perf JSON files conform more closely to the spec at https://www.json.org
Reviewed-by: Andi Kleen <[email protected]>
Reviewed-by: Kajol Jain<[email protected]>
Signed-off-by: James Clark <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: [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: [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]>
|
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Remove trailing commas. A later commit will make the parser more strict
and these will not be valid anymore.
Reviewed-by: Andi Kleen <[email protected]>
Reviewed-by: John Garry <[email protected]>
Reviewed-by: Kajol Jain<[email protected]>
Signed-off-by: James Clark <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: [email protected]
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: [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]>
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There is a "#include <sys/file.h>" in line 10, so remove a duplicate
one in line 1124.
Signed-off-by: Guo Zhengkui <[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]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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This patch introduces a new inline function to convert a timeval to
usec.
This function will be used also in the next patch.
Signed-off-by: Riccardo Mancini <[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/b95035ec4a125355be8ea843f7275c4580da6398.1629490974.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
This patch adds a new function in util/mmap.c to duplicate a mmap_cpu_mask.
This new function will be used in patches in the workqueue patchkit.
Signed-off-by: Riccardo Mancini <[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/8943a548ef7a3dd3e015095afad7e9a8b2154c05.1629490974.git.rickyman7@gmail.com
[ bitmap_alloc() was renamed to bitmap_zalloc() ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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To pick up the fixes in perf/urgent that were just merged into upstream.
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Use get_unaligned() instead of memcpy() to access potentially unaligned
memory, which, when accessed through a pointer, leads to undefined
behavior. get_unaligned() describes much better what is happening there
anyway even if memcpy() does the job.
In addition, since perf tool builds with -Werror, it would fire with:
util/intel-pt-decoder/../../../arch/x86/lib/insn.c: In function '__insn_get_emulate_prefix':
tools/include/../include/asm-generic/unaligned.h:10:15: error: packed attribute is unnecessary [-Werror=packed]
10 | const struct { type x; } __packed *__pptr = (typeof(__pptr))(ptr); \
because -Werror=packed would complain if the packed attribute would have
no effect on the layout of the structure.
In this case, that is intentional so disable the warning only for that
compilation unit.
That part is Reported-by: Stephen Rothwell <[email protected]>
No functional changes.
Fixes: 5ba1071f7554 ("x86/insn, tools/x86: Fix undefined behavior due to potential unaligned accesses")
Suggested-by: Linus Torvalds <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Tested-by: Stephen Rothwell <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
|
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The Topdown metrics events were added as 'perf stat' default events
since commit 42641d6f4d15e6db ("perf stat: Add Topdown metrics events as
default events").
However, the perf attr tests were not updated
accordingly.
The perf attr test fails on the platform which supports Topdown metrics.
# perf test 17
17: Setup struct perf_event_attr :FAILED!
Add Topdown metrics events into perf attr test cases. Make them optional
since they are only available on newer platforms.
Fixes: 42641d6f4d15e6db ("perf stat: Add Topdown metrics events as default events")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Kan Liang <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Filter out -static flag when building plugins as they are always built
as dynamic libraries and -static and -dynamic don't work well together
on arm and arm64.
Signed-off-by: Branislav Rankov <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Tamas Zsoldos <[email protected]>
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Add -lstdc++ to perf when linking libopencsd as it is a dependency. It
does not hurt to add it when dynamic linking.
Signed-off-by: Branislav Rankov <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Tamas Zsoldos <[email protected]>
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The compiler reports that free_sys_event_tables() is dead code.
But according to the semantics, the "LIST_HEAD(sys_event_tables)" should
also be released, just like we do with 'arch_std_events' in main().
Fixes: e9d32c1bf0cd7a98 ("perf vendor events: Add support for arch standard events")
Signed-off-by: Like Xu <[email protected]>
Reviewed-by: John Garry <[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]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Invoking addr2line in a separate subprocess, one for each required
lookup, takes a terribly long time.
This patch introduces a long-running addr2line process for each DSO,
*DRAMATICALLY* speeding up runs of perf.
What used to take tens of minutes now takes tens of seconds.
Debian bug report about this issue:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911815
Signed-off-by: Tony Garnock-Jones <[email protected]>
Tested-by: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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Certain kernel symbols are purposely hidden from kallsyms. The function
is_ignored_symbol() from scripts/kallsyms.c decides if a symbol should
be hidden or not.
The perf test "vmlinux symtab matches kallsyms" fails in case perf finds
some of the hidden symbols in its machine image and can't match them to
kallsyms.
Let's add a filter to check if a symbol not found isn't one of these
before failing the test.
The function is_ignored_symbol() has been copied from scripts/kallsyms.c
and needs to be updated along with the original.
Signed-off-by: Michael Petlan <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
LPU-Reference: [email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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For a metric like:
CONST if expr else CONST
if the values of CONST are identical then expr doesn't need evaluating,
and events, in order to compute a result.
Signed-off-by: Ian Rogers <[email protected]>
Tested-by: John Garry <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Sandeep Dasgupta <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|