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Adding test_generic_metric that prepares and runs given metric over the
data from struct runtime_stat object.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200602214741.1218986-12-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add --metric-no-group that causes all events within metrics to not be
grouped. This can allow the event to get more time when multiplexed, but
may also lower accuracy.
Add --metric-no-merge option. By default events in different metrics may
be shared if the group of events for one metric is the same or larger
than that of the second. Sharing may increase or lower accuracy and so
is now configurable.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200520182011.32236-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add support for new "stat.big-num" boolean option.
This allows a user to set a default for "--no-big-num" for "perf stat"
commands.
--
$ perf config stat.big-num
$ perf stat --event cycles /bin/true
Performance counter stats for '/bin/true':
778,849 cycles
[...]
$ perf config stat.big-num=false
$ perf config stat.big-num
stat.big-num=false
$ perf stat --event cycles /bin/true
Performance counter stats for '/bin/true':
769622 cycles
[...]
--
There is an interaction with "--field-separator" that must be
accommodated, such that specifying "--big-num --field-separator={x}"
still reports an invalid combination of options.
Documentation for perf-config and perf-stat updated.
Signed-off-by: Paul Clarke <pc@us.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lore.kernel.org/lkml/1589991815-17951-1-git-send-email-pc@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Currently 'perf stat' supports to print counts at regular interval (-I),
but it's not very easy for user to get the overall statistics.
The patch uses 'evsel->prev_raw_counts' to get counts for summary. Copy
the counts to 'evsel->counts' after printing the interval results.
Next, we just follow the non-interval processing.
Let's see some examples,
root@kbl-ppc:~# perf stat -e cycles -I1000 --interval-count 2
# time counts unit events
1.000412064 2,281,114 cycles
2.001383658 2,547,880 cycles
Performance counter stats for 'system wide':
4,828,994 cycles
2.002860349 seconds time elapsed
root@kbl-ppc:~# perf stat -e cycles,instructions -I1000 --interval-count 2
# time counts unit events
1.000389902 1,536,093 cycles
1.000389902 420,226 instructions # 0.27 insn per cycle
2.001433453 2,213,952 cycles
2.001433453 735,465 instructions # 0.33 insn per cycle
Performance counter stats for 'system wide':
3,750,045 cycles
1,155,691 instructions # 0.31 insn per cycle
2.003023361 seconds time elapsed
root@kbl-ppc:~# perf stat -M CPI,IPC -I1000 --interval-count 2
# time counts unit events
1.000435121 905,303 inst_retired.any # 2.9 CPI
1.000435121 2,663,333 cycles
1.000435121 914,702 inst_retired.any # 0.3 IPC
1.000435121 2,676,559 cpu_clk_unhalted.thread
2.001615941 1,951,092 inst_retired.any # 1.8 CPI
2.001615941 3,551,357 cycles
2.001615941 1,950,837 inst_retired.any # 0.5 IPC
2.001615941 3,551,044 cpu_clk_unhalted.thread
Performance counter stats for 'system wide':
2,856,395 inst_retired.any # 2.2 CPI
6,214,690 cycles
2,865,539 inst_retired.any # 0.5 IPC
6,227,603 cpu_clk_unhalted.thread
2.003403078 seconds time elapsed
Committer testing:
Before:
# perf stat -e cycles -I1000 --interval-count 2
# time counts unit events
1.000618627 26,877,408 cycles
2.001417968 233,672,829 cycles
#
After:
# perf stat -e cycles -I1000 --interval-count 2
# time counts unit events
1.001531815 5,341,388,792 cycles
2.002936530 100,073,912 cycles
Performance counter stats for 'system wide':
5,441,462,704 cycles
2.004893794 seconds time elapsed
#
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200520042737.24160-6-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To collect the overall statistics for interval mode, we copy the counts
from evsel->prev_raw_counts to evsel->counts.
For AGGR_GLOBAL mode, because the perf_stat_process_counter creates aggr
values from per cpu values, but the per cpu values are 0, so the
calculated aggr values will be always 0.
This patch uses a trick that saves the previous aggr value to the first
member of perf_counts, then aggr calculation in process_counter_values
can work correctly for AGGR_GLOBAL.
v6:
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Add comments in perf_evlist__save_aggr_prev_raw_counts.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200520042737.24160-5-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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It would be useful to support the overall statistics for perf-stat
interval mode. For example, report the summary at the end of "perf-stat
-I" output.
But since perf-stat can support many aggregation modes, such as
--per-thread, --per-socket, -M and etc, we need a solution which doesn't
bring much complexity.
The idea is to use 'evsel->prev_raw_counts' which is updated in each
interval and it's saved with the latest counts. Before reporting the
summary, we copy the counts from evsel->prev_raw_counts to
evsel->counts, and next we just follow non-interval processing.
v5:
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Don't save the previous aggr value to the member of [cpu0,thread0]
in perf_counts. Originally that was a trick because the
perf_stat_process_counter would create aggr values from per cpu
values. But we don't need to do that all the time. We will
handle it in next patch.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200520042737.24160-4-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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We have supported the event modifier "percore" which sums up the event
counts for all hardware threads in a core and show the counts per core.
For example,
# perf stat -e cpu/event=cpu-cycles,percore/ -a -A -- sleep 1
Performance counter stats for 'system wide':
S0-D0-C0 395,072 cpu/event=cpu-cycles,percore/
S0-D0-C1 851,248 cpu/event=cpu-cycles,percore/
S0-D0-C2 954,226 cpu/event=cpu-cycles,percore/
S0-D0-C3 1,233,659 cpu/event=cpu-cycles,percore/
This patch provides a new option "--percore-show-thread". It is used
with event modifier "percore" together to sum up the event counts for
all hardware threads in a core but show the counts per hardware thread.
This is essentially a replacement for the any bit (which is gone in
Icelake). Per core counts are useful for some formulas, e.g. CoreIPC.
The original percore version was inconvenient to post process. This
variant matches the output of the any bit.
With this patch, for example,
# perf stat -e cpu/event=cpu-cycles,percore/ -a -A --percore-show-thread -- sleep 1
Performance counter stats for 'system wide':
CPU0 2,453,061 cpu/event=cpu-cycles,percore/
CPU1 1,823,921 cpu/event=cpu-cycles,percore/
CPU2 1,383,166 cpu/event=cpu-cycles,percore/
CPU3 1,102,652 cpu/event=cpu-cycles,percore/
CPU4 2,453,061 cpu/event=cpu-cycles,percore/
CPU5 1,823,921 cpu/event=cpu-cycles,percore/
CPU6 1,383,166 cpu/event=cpu-cycles,percore/
CPU7 1,102,652 cpu/event=cpu-cycles,percore/
We can see counts are duplicated in CPU pairs (CPU0/CPU4, CPU1/CPU5,
CPU2/CPU6, CPU3/CPU7).
The interval mode also works. For example,
# perf stat -e cpu/event=cpu-cycles,percore/ -a -A --percore-show-thread -I 1000
# time CPU counts unit events
1.000425421 CPU0 925,032 cpu/event=cpu-cycles,percore/
1.000425421 CPU1 430,202 cpu/event=cpu-cycles,percore/
1.000425421 CPU2 436,843 cpu/event=cpu-cycles,percore/
1.000425421 CPU3 1,192,504 cpu/event=cpu-cycles,percore/
1.000425421 CPU4 925,032 cpu/event=cpu-cycles,percore/
1.000425421 CPU5 430,202 cpu/event=cpu-cycles,percore/
1.000425421 CPU6 436,843 cpu/event=cpu-cycles,percore/
1.000425421 CPU7 1,192,504 cpu/event=cpu-cycles,percore/
If we offline CPU5, the result is:
# perf stat -e cpu/event=cpu-cycles,percore/ -a -A --percore-show-thread -- sleep 1
Performance counter stats for 'system wide':
CPU0 2,752,148 cpu/event=cpu-cycles,percore/
CPU1 1,009,312 cpu/event=cpu-cycles,percore/
CPU2 2,784,072 cpu/event=cpu-cycles,percore/
CPU3 2,427,922 cpu/event=cpu-cycles,percore/
CPU4 2,752,148 cpu/event=cpu-cycles,percore/
CPU6 2,784,072 cpu/event=cpu-cycles,percore/
CPU7 2,427,922 cpu/event=cpu-cycles,percore/
1.001416041 seconds time elapsed
v4:
---
Ravi Bangoria reports an issue in v3. Once we offline a CPU,
the output is not correct. The issue is we should use the cpu
idx in print_percore_thread rather than using the cpu value.
v3:
---
1. Fix the interval mode output error
2. Use cpu value (not cpu index) in config->aggr_get_id().
3. Refine the code according to Jiri's comments.
v2:
---
Add the explanation in change log. This is essentially a replacement
for the any bit. No code change.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200214080452.26402-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Restructure the event opening in perf stat to cycle through the events
by CPU after setting affinity to that CPU.
This eliminates IPI overhead in the perf API.
We have to loop through the CPU in the outter builtin-stat code instead
of leaving that to low level functions.
It has to change the weak group fallback strategy slightly. Since we
cannot easily undo the opens for other CPUs move the weak group retry to
a separate loop.
Before with a large test case with 94 CPUs:
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
42.75 4.050910 67 60046 110 perf_event_open
After:
26.86 0.944396 16 58069 110 perf_event_open
(the number changes slightly because the weak group retries
work differently and the test case relies on weak groups)
Committer notes:
Added one of the hunks in a patch provided by Andi after I noticed that
the "event times" 'perf test' entry was segfaulting.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20191121001522.180827-10-andi@firstfloor.org
Link: http://lore.kernel.org/lkml/20191127232657.GL84886@tassilo.jf.intel.com # Fix
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Adding new --per-node option to aggregate counts per NUMA
nodes for system-wide mode measurements.
You can specify --per-node in live mode:
# perf stat -a -I 1000 -e cycles --per-node
# time node cpus counts unit events
1.000542550 N0 20 6,202,097 cycles
1.000542550 N1 20 639,559 cycles
2.002040063 N0 20 7,412,495 cycles
2.002040063 N1 20 2,185,577 cycles
3.003451699 N0 20 6,508,917 cycles
3.003451699 N1 20 765,607 cycles
...
Or in the record/report stat session:
# perf stat record -a -I 1000 -e cycles
# time counts unit events
1.000536937 10,008,468 cycles
2.002090152 9,578,539 cycles
3.003625233 7,647,869 cycles
4.005135036 7,032,086 cycles
^C 4.340902364 3,923,893 cycles
# perf stat report --per-node
# time node cpus counts unit events
1.000536937 N0 20 9,355,086 cycles
1.000536937 N1 20 653,382 cycles
2.002090152 N0 20 7,712,838 cycles
2.002090152 N1 20 1,865,701 cycles
3.003625233 N0 20 6,604,441 cycles
3.003625233 N1 20 1,043,428 cycles
4.005135036 N0 20 6,350,522 cycles
4.005135036 N1 20 681,564 cycles
4.340902364 N0 20 3,403,188 cycles
4.340902364 N1 20 520,705 cycles
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20190904073415.723-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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'perf record' has supported --all-kernel / --all-user to configure all
used events to run in kernel space or run in user space. But 'perf stat'
doesn't support these options.
It would be useful to support these options in 'perf stat' too to keep
the same semantics available in both tools.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20191011050545.3899-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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When using 'perf stat' with repeat and interval option, it shows wrong
values for events.
The wrong values will be shown for the first interval on the second and
subsequent repetitions.
Without the fix:
# perf stat -r 3 -I 2000 -e faults -e sched:sched_switch -a sleep 5
2.000282489 53 faults
2.000282489 513 sched:sched_switch
4.005478208 3,721 faults
4.005478208 2,666 sched:sched_switch
5.025470933 395 faults
5.025470933 1,307 sched:sched_switch
2.009602825 1,84,46,74,40,73,70,95,47,520 faults <------
2.009602825 1,84,46,74,40,73,70,95,49,568 sched:sched_switch <------
4.019612206 4,730 faults
4.019612206 2,746 sched:sched_switch
5.039615484 3,953 faults
5.039615484 1,496 sched:sched_switch
2.000274620 1,84,46,74,40,73,70,95,47,520 faults <------
2.000274620 1,84,46,74,40,73,70,95,47,520 sched:sched_switch <------
4.000480342 4,282 faults
4.000480342 2,303 sched:sched_switch
5.000916811 1,322 faults
5.000916811 1,064 sched:sched_switch
#
prev_raw_counts is allocated when using intervals. This is used when
calculating the difference in the counts of events when using interval.
The current counts are stored in prev_raw_counts to calculate the
differences in the next iteration.
On the first interval of the second and subsequent repetitions,
prev_raw_counts would be the values stored in the last interval of the
previous repetitions, while the current counts will only be for the
first interval of the current repetition.
Hence there is a possibility of events showing up as big number.
Fix this by resetting prev_raw_counts whenever perf stat repeats the
command.
With the fix:
# perf stat -r 3 -I 2000 -e faults -e sched:sched_switch -a sleep 5
2.019349347 2,597 faults
2.019349347 2,753 sched:sched_switch
4.019577372 3,098 faults
4.019577372 2,532 sched:sched_switch
5.019415481 1,879 faults
5.019415481 1,356 sched:sched_switch
2.000178813 8,468 faults
2.000178813 2,254 sched:sched_switch
4.000404621 7,440 faults
4.000404621 1,266 sched:sched_switch
5.040196079 2,458 faults
5.040196079 556 sched:sched_switch
2.000191939 6,870 faults
2.000191939 1,170 sched:sched_switch
4.000414103 541 faults
4.000414103 902 sched:sched_switch
5.000809863 450 faults
5.000809863 364 sched:sched_switch
#
Committer notes:
This was broken since the cset introducing the --interval feature, i.e.
--repeat + --interval wasn't tested at that point, add the Fixes tag so
that automatic scripts can pick this up.
Fixes: 13370a9b5bb8 ("perf stat: Add interval printing")
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: stable@vger.kernel.org # v3.9+
Link: http://lore.kernel.org/lkml/20190904094738.9558-2-srikar@linux.vnet.ibm.com
[ Fixed up conflicts with libperf, i.e. some perf_{evsel,evlist} lost the 'perf' prefix ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Together with the other synthsizers, and rename it to
perf_event__synthesize_stat_events().
This allows us to stop including event.h in util/stat.h.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-q5ebhrp44txboobs86htu5r9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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And into a separate util/record.h, to better isolate things and make
sure that those who use record_opts and the other moved declarations
are explicitly including the necessary header.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-31q8mei1qkh74qvkl9nwidfq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Just a forward declaration for 'struct timespec' is needed, ditch the
rest.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-6shdqw801oqe7ax6r307k27r@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Move the xyarray class from perf to libperf, because it's going to be
used in both.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-58-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Rename struct perf_evlist to struct evlist, so we don't have a name
clash when we add struct perf_evlist in libperf.
Committer notes:
Added fixes to build on arm64, from Jiri and from me
(tools/perf/util/cs-etm.c)
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-6-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Rename struct perf_evsel to struct evsel, so we don't have a name clash
when we add struct perf_evsel in libperf.
Committer notes:
Added fixes for arm64, provided by Jiri.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-5-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Rename struct cpu_map to struct perf_cpu_map, so it could be part of
libperf.
Committer notes:
Added fixes for arm64, provided by Jiri.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
It is useful to aggregate counts per die. E.g. Uncore becomes die-scope
on Xeon Cascade Lake-AP.
Introduce a new option "--per-die" to support per-die aggregation.
The global id for each core has been changed to socket + die id + core
id. The global id for each die is socket + die id.
Add die information for per-core aggregation. The output of per-core
aggregation will be changed from "S0-C0" to "S0-D0-C0". Any scripts
which rely on the output format of per-core aggregation probably be
broken.
For 'perf stat record/report', there is no die information when
processing the old perf.data. The per-die result will be the same as
per-socket.
Committer notes:
Renamed 'die' variable to 'die_id' to fix the build in some systems:
CC /tmp/build/perf/builtin-script.o
cc1: warnings being treated as errors
builtin-stat.c: In function 'perf_env__get_die':
builtin-stat.c:963: error: declaration of 'die' shadows a global declaration
util/util.h:19: error: shadowed declaration is here
mv: cannot stat `/tmp/build/perf/.builtin-stat.o.tmp': No such file or directory
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/n/tip-bsnhx7vgsuu6ei307mw60mbj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Now that we keep a perf_tool pointer inside perf_session, there's no
need to have a perf_tool argument in the event_op2 callback. Remove it.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180913125450.21342-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move perf_evlist__print_counters() with all its dependency functions to
the stat-display.c object.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-44-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static variable 'metric_events' to 'struct perf_stat_config',
so that it can be passed around and used outside 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-43-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static variables 'walltime_*' to 'struct perf_stat_config', so
that it can be passed around and used outside 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-42-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static variable 'no_merge' to 'struct perf_stat_config', so
that it can be passed around and used outside 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-40-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static variable 'big_num' to 'struct perf_stat_config', so that
it can be passed around and used outside 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-39-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the *_aggr_* global variables to 'struct perf_stat_config', so that
it can be passed around and used outside 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-37-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the 'ru_*' global variables to 'struct perf_stat_config', so that
it can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-36-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the 'print_mixed_hw_group_error' global variable to 'struct perf_stat_config',
so that it can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-35-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the 'print_free_counters_hint' variable to 'struct perf_stat_config',
so that it can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-34-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static 'null_run' variable to 'struct perf_stat_config', so
that it can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-33-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add 'walltime_nsecs_stats' pointer to 'struct perf_stat_config', so that
it can be passed around and used outside the 'perf stat' command.
It's initialized to point to stat's walltime_nsecs_stats value.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-32-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static 'metric_only_len' variable to 'struct perf_stat_config',
so that it can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-29-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static 'run_count' variable to 'struct perf_stat_config', so
that it can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-28-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static 'unit_width' variable to 'struct perf_stat_config',
so it can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-24-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static 'metric_only' variable to 'struct perf_stat_config', so
it can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-23-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static 'interval_clear' variable to 'struct perf_stat_config',
so it can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-22-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static csv_* variables to 'struct perf_stat_config', so that it
can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-21-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add 'struct perf_stat_config' argument to the global print functions, so
that these functions can be used out of the 'perf stat' command code.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-20-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
So that it can be used globally.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-15-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move create_perf_stat_counter() to the 'stat' class, so that we can use
it globally.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-9-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add 'identifier' flag to 'struct perf_stat_config' to carry the info
whether to use PERF_SAMPLE_IDENTIFIER for events.
This makes create_perf_stat_counter() independent.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-6-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static 'no_inherit' variable to 'struct perf_stat_config', so
it can be passed around and used outside the 'perf stat' command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move the static 'initial_delay' variable to 'struct perf_stat_config',
so it can be passed around and used outside the 'perf stat' command.
Add 'struct perf_stat_config' argument to create_perf_stat_counter() and
use its 'initial_delay' member instead of the static one.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add --table option to display time for each run (-r option), like:
$ perf stat --null -r 5 --table perf bench sched pipe
Performance counter stats for './perf bench sched pipe' (5 runs):
# Table of individual measurements:
5.379 (-0.176)
5.243 (-0.311)
5.238 (-0.317)
5.536 (-0.019)
6.377 (+0.823)
# Final result:
5.555 +- 0.213 seconds time elapsed ( +- 3.83% )
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180423090823.32309-8-jolsa@kernel.org
[ Document the new option in 'perf stat's man page ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Function perf_stat_evsel_id_init() has global linkage but is only used
in util/stat.c. Make it static.
Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20180312103807.45069-2-tmricht@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Introduce a new option to print counts after N milliseconds and update
'perf stat' documentation accordingly.
Show below is the output of the new option for perf stat.
$ perf stat --time 2000 -e cycles -a
Performance counter stats for 'system wide':
157,260,423 cycles
2.003060766 seconds time elapsed
We can print the count deltas after N milliseconds with this new
introduced option. This option is not supported with "-I" option.
In addition, according to Kangliang's patch(19afd10410957), the
monitoring overhead for system-wide core event could be very high if the
interval-print parameter was below 100ms, and the limitation value is
10ms.
So the same warning will be displayed when the time is set between 10ms
to 100ms, and the minimal time is limited to 10ms. Users can make a
decision according to their spcific cases.
Committer notes:
This actually stops the workload after the specified time, then prints
the counts.
So I renamed the option to --timeout and updated the documentation to
state that it will not just print the counts after the specified time,
but will really stop the 'perf stat' session and print the counts.
The rename from 'time' to 'timeout' also fixes the build in systems
where 'time' is used by glibc and can't be used as a name of a variable,
such as centos:5 and centos:6.
Changes since v3:
- none.
Changes since v2:
- modify the time check in __run_perf_stat func to keep some consistency
with the workload case.
- add the warning when the time is set between 10ms to 100ms.
- add the pr_err when the time is set below 10ms.
Changes since v1:
- none.
Signed-off-by: yuzhoujian <yuzhoujian@didichuxing.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1517217923-8302-3-git-send-email-ufo19890607@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Introduce a new option to print counts for fixed number of times and
update 'perf stat' documentation accordingly.
Show below is the output of the new option for perf stat.
$ perf stat -I 1000 --interval-count 2 -e cycles -a
# time counts unit events
1.002827089 93,884,870 cycles
2.004231506 56,573,446 cycles
We can just print the counts for several times with this newly
introduced option. The usage of it is a little like 'vmstat', and it
should be used together with "-I" option.
$ vmstat -n 1 2
procs ---------memory-------------- --swap- ----io-- -system-- ------cpu---
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 0 78270544 547484 51732076 0 0 0 20 1 1 1 0 99 0 0
0 0 0 78270512 547484 51732080 0 0 0 16 477 1555 0 0 100 0 0
Changes since v3:
- merge interval_count check and times check to one line.
- fix the wrong indent in stat.h
- use stat_config.times instead of 'times' in cmd_stat function.
Changes since v2:
- none.
Changes since v1:
- change the name of the new option "times-print" to "interval-count".
- keep the new option interval specifically.
Signed-off-by: yuzhoujian <yuzhoujian@didichuxing.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1517217923-8302-2-git-send-email-ufo19890607@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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There are many threads reported if we enable '--per-thread'
globally.
1. Most of the threads are not counted or counting value 0.
This patch removes these threads.
2. We also resort the threads in display according to the
counting value. It's useful for user to see the hottest
threads easily.
For example, the new results would be:
root@skl:/tmp# perf stat --per-thread
^C
Performance counter stats for 'system wide':
perf-24165 4.302433 cpu-clock (msec) # 0.001 CPUs utilized
vmstat-23127 1.562215 cpu-clock (msec) # 0.000 CPUs utilized
irqbalance-2780 0.827851 cpu-clock (msec) # 0.000 CPUs utilized
sshd-23111 0.278308 cpu-clock (msec) # 0.000 CPUs utilized
thermald-2841 0.230880 cpu-clock (msec) # 0.000 CPUs utilized
sshd-23058 0.207306 cpu-clock (msec) # 0.000 CPUs utilized
kworker/0:2-19991 0.133983 cpu-clock (msec) # 0.000 CPUs utilized
kworker/u16:1-18249 0.125636 cpu-clock (msec) # 0.000 CPUs utilized
rcu_sched-8 0.085533 cpu-clock (msec) # 0.000 CPUs utilized
kworker/u16:2-23146 0.077139 cpu-clock (msec) # 0.000 CPUs utilized
gmain-2700 0.041789 cpu-clock (msec) # 0.000 CPUs utilized
kworker/4:1-15354 0.028370 cpu-clock (msec) # 0.000 CPUs utilized
kworker/6:0-17528 0.023895 cpu-clock (msec) # 0.000 CPUs utilized
kworker/4:1H-1887 0.013209 cpu-clock (msec) # 0.000 CPUs utilized
kworker/5:2-31362 0.011627 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/0-11 0.010892 cpu-clock (msec) # 0.000 CPUs utilized
kworker/3:2-12870 0.010220 cpu-clock (msec) # 0.000 CPUs utilized
ksoftirqd/0-7 0.008869 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/1-14 0.008476 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/7-50 0.002944 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/3-26 0.002893 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/4-32 0.002759 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/2-20 0.002429 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/6-44 0.001491 cpu-clock (msec) # 0.000 CPUs utilized
watchdog/5-38 0.001477 cpu-clock (msec) # 0.000 CPUs utilized
rcu_sched-8 10 context-switches # 0.117 M/sec
kworker/u16:1-18249 7 context-switches # 0.056 M/sec
sshd-23111 4 context-switches # 0.014 M/sec
vmstat-23127 4 context-switches # 0.003 M/sec
perf-24165 4 context-switches # 0.930 K/sec
kworker/0:2-19991 3 context-switches # 0.022 M/sec
kworker/u16:2-23146 3 context-switches # 0.039 M/sec
kworker/4:1-15354 2 context-switches # 0.070 M/sec
kworker/6:0-17528 2 context-switches # 0.084 M/sec
sshd-23058 2 context-switches # 0.010 M/sec
ksoftirqd/0-7 1 context-switches # 0.113 M/sec
watchdog/0-11 1 context-switches # 0.092 M/sec
watchdog/1-14 1 context-switches # 0.118 M/sec
watchdog/2-20 1 context-switches # 0.412 M/sec
watchdog/3-26 1 context-switches # 0.346 M/sec
watchdog/4-32 1 context-switches # 0.362 M/sec
watchdog/5-38 1 context-switches # 0.677 M/sec
watchdog/6-44 1 context-switches # 0.671 M/sec
watchdog/7-50 1 context-switches # 0.340 M/sec
kworker/4:1H-1887 1 context-switches # 0.076 M/sec
thermald-2841 1 context-switches # 0.004 M/sec
gmain-2700 1 context-switches # 0.024 M/sec
irqbalance-2780 1 context-switches # 0.001 M/sec
kworker/3:2-12870 1 context-switches # 0.098 M/sec
kworker/5:2-31362 1 context-switches # 0.086 M/sec
kworker/u16:1-18249 2 cpu-migrations # 0.016 M/sec
kworker/u16:2-23146 2 cpu-migrations # 0.026 M/sec
rcu_sched-8 1 cpu-migrations # 0.012 M/sec
sshd-23058 1 cpu-migrations # 0.005 M/sec
perf-24165 8,833,385 cycles # 2.053 GHz
vmstat-23127 1,702,699 cycles # 1.090 GHz
irqbalance-2780 739,847 cycles # 0.894 GHz
sshd-23111 269,506 cycles # 0.968 GHz
thermald-2841 204,556 cycles # 0.886 GHz
sshd-23058 158,780 cycles # 0.766 GHz
kworker/0:2-19991 112,981 cycles # 0.843 GHz
kworker/u16:1-18249 100,926 cycles # 0.803 GHz
rcu_sched-8 74,024 cycles # 0.865 GHz
kworker/u16:2-23146 55,984 cycles # 0.726 GHz
gmain-2700 34,278 cycles # 0.820 GHz
kworker/4:1-15354 20,665 cycles # 0.728 GHz
kworker/6:0-17528 16,445 cycles # 0.688 GHz
kworker/5:2-31362 9,492 cycles # 0.816 GHz
watchdog/3-26 8,695 cycles # 3.006 GHz
kworker/4:1H-1887 8,238 cycles # 0.624 GHz
watchdog/4-32 7,580 cycles # 2.747 GHz
kworker/3:2-12870 7,306 cycles # 0.715 GHz
watchdog/2-20 7,274 cycles # 2.995 GHz
watchdog/0-11 6,988 cycles # 0.642 GHz
ksoftirqd/0-7 6,376 cycles # 0.719 GHz
watchdog/1-14 5,340 cycles # 0.630 GHz
watchdog/5-38 4,061 cycles # 2.749 GHz
watchdog/6-44 3,976 cycles # 2.667 GHz
watchdog/7-50 3,418 cycles # 1.161 GHz
vmstat-23127 2,511,699 instructions # 1.48 insn per cycle
perf-24165 1,829,908 instructions # 0.21 insn per cycle
irqbalance-2780 1,190,204 instructions # 1.61 insn per cycle
thermald-2841 143,544 instructions # 0.70 insn per cycle
sshd-23111 128,138 instructions # 0.48 insn per cycle
sshd-23058 57,654 instructions # 0.36 insn per cycle
rcu_sched-8 44,063 instructions # 0.60 insn per cycle
kworker/u16:1-18249 42,551 instructions # 0.42 insn per cycle
kworker/0:2-19991 25,873 instructions # 0.23 insn per cycle
kworker/u16:2-23146 21,407 instructions # 0.38 insn per cycle
gmain-2700 13,691 instructions # 0.40 insn per cycle
kworker/4:1-15354 12,964 instructions # 0.63 insn per cycle
kworker/6:0-17528 10,034 instructions # 0.61 insn per cycle
kworker/5:2-31362 5,203 instructions # 0.55 insn per cycle
kworker/3:2-12870 4,866 instructions # 0.67 insn per cycle
kworker/4:1H-1887 3,586 instructions # 0.44 insn per cycle
ksoftirqd/0-7 3,463 instructions # 0.54 insn per cycle
watchdog/0-11 3,135 instructions # 0.45 insn per cycle
watchdog/1-14 3,135 instructions # 0.59 insn per cycle
watchdog/2-20 3,135 instructions # 0.43 insn per cycle
watchdog/3-26 3,135 instructions # 0.36 insn per cycle
watchdog/4-32 3,135 instructions # 0.41 insn per cycle
watchdog/5-38 3,135 instructions # 0.77 insn per cycle
watchdog/6-44 3,135 instructions # 0.79 insn per cycle
watchdog/7-50 3,135 instructions # 0.92 insn per cycle
vmstat-23127 539,181 branches # 345.139 M/sec
perf-24165 375,364 branches # 87.245 M/sec
irqbalance-2780 262,092 branches # 316.593 M/sec
thermald-2841 31,611 branches # 136.915 M/sec
sshd-23111 21,874 branches # 78.596 M/sec
sshd-23058 10,682 branches # 51.528 M/sec
rcu_sched-8 8,693 branches # 101.633 M/sec
kworker/u16:1-18249 7,891 branches # 62.808 M/sec
kworker/0:2-19991 5,761 branches # 42.998 M/sec
kworker/u16:2-23146 4,099 branches # 53.138 M/sec
kworker/4:1-15354 2,755 branches # 97.110 M/sec
gmain-2700 2,638 branches # 63.127 M/sec
kworker/6:0-17528 2,216 branches # 92.739 M/sec
kworker/5:2-31362 1,132 branches # 97.360 M/sec
kworker/3:2-12870 1,081 branches # 105.773 M/sec
kworker/4:1H-1887 725 branches # 54.887 M/sec
ksoftirqd/0-7 707 branches # 79.716 M/sec
watchdog/0-11 652 branches # 59.860 M/sec
watchdog/1-14 652 branches # 76.923 M/sec
watchdog/2-20 652 branches # 268.423 M/sec
watchdog/3-26 652 branches # 225.372 M/sec
watchdog/4-32 652 branches # 236.318 M/sec
watchdog/5-38 652 branches # 441.435 M/sec
watchdog/6-44 652 branches # 437.290 M/sec
watchdog/7-50 652 branches # 221.467 M/sec
vmstat-23127 8,960 branch-misses # 1.66% of all branches
irqbalance-2780 3,047 branch-misses # 1.16% of all branches
perf-24165 2,876 branch-misses # 0.77% of all branches
sshd-23111 1,843 branch-misses # 8.43% of all branches
thermald-2841 1,444 branch-misses # 4.57% of all branches
sshd-23058 1,379 branch-misses # 12.91% of all branches
kworker/u16:1-18249 982 branch-misses # 12.44% of all branches
rcu_sched-8 893 branch-misses # 10.27% of all branches
kworker/u16:2-23146 578 branch-misses # 14.10% of all branches
kworker/0:2-19991 376 branch-misses # 6.53% of all branches
gmain-2700 280 branch-misses # 10.61% of all branches
kworker/6:0-17528 196 branch-misses # 8.84% of all branches
kworker/4:1-15354 187 branch-misses # 6.79% of all branches
kworker/5:2-31362 123 branch-misses # 10.87% of all branches
watchdog/0-11 95 branch-misses # 14.57% of all branches
watchdog/4-32 89 branch-misses # 13.65% of all branches
kworker/3:2-12870 80 branch-misses # 7.40% of all branches
watchdog/3-26 61 branch-misses # 9.36% of all branches
kworker/4:1H-1887 60 branch-misses # 8.28% of all branches
watchdog/2-20 52 branch-misses # 7.98% of all branches
ksoftirqd/0-7 47 branch-misses # 6.65% of all branches
watchdog/1-14 46 branch-misses # 7.06% of all branches
watchdog/7-50 13 branch-misses # 1.99% of all branches
watchdog/5-38 8 branch-misses # 1.23% of all branches
watchdog/6-44 7 branch-misses # 1.07% of all branches
3.695150786 seconds time elapsed
root@skl:/tmp# perf stat --per-thread -M IPC,CPI
^C
Performance counter stats for 'system wide':
vmstat-23127 2,000,783 inst_retired.any # 1.5 IPC
thermald-2841 1,472,670 inst_retired.any # 1.3 IPC
sshd-23111 977,374 inst_retired.any # 1.2 IPC
perf-24163 483,779 inst_retired.any # 0.2 IPC
gmain-2700 341,213 inst_retired.any # 0.9 IPC
sshd-23058 148,891 inst_retired.any # 0.8 IPC
rtkit-daemon-3288 71,210 inst_retired.any # 0.7 IPC
kworker/u16:1-18249 39,562 inst_retired.any # 0.3 IPC
rcu_sched-8 14,474 inst_retired.any # 0.8 IPC
kworker/0:2-19991 7,659 inst_retired.any # 0.2 IPC
kworker/4:1-15354 6,714 inst_retired.any # 0.8 IPC
rtkit-daemon-3289 4,839 inst_retired.any # 0.3 IPC
kworker/6:0-17528 3,321 inst_retired.any # 0.6 IPC
kworker/5:2-31362 3,215 inst_retired.any # 0.5 IPC
kworker/7:2-23145 3,173 inst_retired.any # 0.7 IPC
kworker/4:1H-1887 1,719 inst_retired.any # 0.3 IPC
watchdog/0-11 1,479 inst_retired.any # 0.3 IPC
watchdog/1-14 1,479 inst_retired.any # 0.3 IPC
watchdog/2-20 1,479 inst_retired.any # 0.4 IPC
watchdog/3-26 1,479 inst_retired.any # 0.4 IPC
watchdog/4-32 1,479 inst_retired.any # 0.3 IPC
watchdog/5-38 1,479 inst_retired.any # 0.3 IPC
watchdog/6-44 1,479 inst_retired.any # 0.7 IPC
watchdog/7-50 1,479 inst_retired.any # 0.7 IPC
kworker/u16:2-23146 1,408 inst_retired.any # 0.5 IPC
perf-24163 2,249,872 cpu_clk_unhalted.thread
vmstat-23127 1,352,455 cpu_clk_unhalted.thread
thermald-2841 1,161,140 cpu_clk_unhalted.thread
sshd-23111 807,827 cpu_clk_unhalted.thread
gmain-2700 375,535 cpu_clk_unhalted.thread
sshd-23058 194,071 cpu_clk_unhalted.thread
kworker/u16:1-18249 114,306 cpu_clk_unhalted.thread
rtkit-daemon-3288 103,547 cpu_clk_unhalted.thread
kworker/0:2-19991 46,550 cpu_clk_unhalted.thread
rcu_sched-8 18,855 cpu_clk_unhalted.thread
rtkit-daemon-3289 17,549 cpu_clk_unhalted.thread
kworker/4:1-15354 8,812 cpu_clk_unhalted.thread
kworker/5:2-31362 6,812 cpu_clk_unhalted.thread
kworker/4:1H-1887 5,270 cpu_clk_unhalted.thread
kworker/6:0-17528 5,111 cpu_clk_unhalted.thread
kworker/7:2-23145 4,667 cpu_clk_unhalted.thread
watchdog/0-11 4,663 cpu_clk_unhalted.thread
watchdog/1-14 4,663 cpu_clk_unhalted.thread
watchdog/4-32 4,626 cpu_clk_unhalted.thread
watchdog/5-38 4,403 cpu_clk_unhalted.thread
watchdog/3-26 3,936 cpu_clk_unhalted.thread
watchdog/2-20 3,850 cpu_clk_unhalted.thread
kworker/u16:2-23146 2,654 cpu_clk_unhalted.thread
watchdog/6-44 2,017 cpu_clk_unhalted.thread
watchdog/7-50 2,017 cpu_clk_unhalted.thread
vmstat-23127 2,000,783 inst_retired.any # 0.7 CPI
thermald-2841 1,472,670 inst_retired.any # 0.8 CPI
sshd-23111 977,374 inst_retired.any # 0.8 CPI
perf-24163 495,037 inst_retired.any # 4.7 CPI
gmain-2700 341,213 inst_retired.any # 1.1 CPI
sshd-23058 148,891 inst_retired.any # 1.3 CPI
rtkit-daemon-3288 71,210 inst_retired.any # 1.5 CPI
kworker/u16:1-18249 39,562 inst_retired.any # 2.9 CPI
rcu_sched-8 14,474 inst_retired.any # 1.3 CPI
kworker/0:2-19991 7,659 inst_retired.any # 6.1 CPI
kworker/4:1-15354 6,714 inst_retired.any # 1.3 CPI
rtkit-daemon-3289 4,839 inst_retired.any # 3.6 CPI
kworker/6:0-17528 3,321 inst_retired.any # 1.5 CPI
kworker/5:2-31362 3,215 inst_retired.any # 2.1 CPI
kworker/7:2-23145 3,173 inst_retired.any # 1.5 CPI
kworker/4:1H-1887 1,719 inst_retired.any # 3.1 CPI
watchdog/0-11 1,479 inst_retired.any # 3.2 CPI
watchdog/1-14 1,479 inst_retired.any # 3.2 CPI
watchdog/2-20 1,479 inst_retired.any # 2.6 CPI
watchdog/3-26 1,479 inst_retired.any # 2.7 CPI
watchdog/4-32 1,479 inst_retired.any # 3.1 CPI
watchdog/5-38 1,479 inst_retired.any # 3.0 CPI
watchdog/6-44 1,479 inst_retired.any # 1.4 CPI
watchdog/7-50 1,479 inst_retired.any # 1.4 CPI
kworker/u16:2-23146 1,408 inst_retired.any # 1.9 CPI
perf-24163 2,302,323 cycles
vmstat-23127 1,352,455 cycles
thermald-2841 1,161,140 cycles
sshd-23111 807,827 cycles
gmain-2700 375,535 cycles
sshd-23058 194,071 cycles
kworker/u16:1-18249 114,306 cycles
rtkit-daemon-3288 103,547 cycles
kworker/0:2-19991 46,550 cycles
rcu_sched-8 18,855 cycles
rtkit-daemon-3289 17,549 cycles
kworker/4:1-15354 8,812 cycles
kworker/5:2-31362 6,812 cycles
kworker/4:1H-1887 5,270 cycles
kworker/6:0-17528 5,111 cycles
kworker/7:2-23145 4,667 cycles
watchdog/0-11 4,663 cycles
watchdog/1-14 4,663 cycles
watchdog/4-32 4,626 cycles
watchdog/5-38 4,403 cycles
watchdog/3-26 3,936 cycles
watchdog/2-20 3,850 cycles
kworker/u16:2-23146 2,654 cycles
watchdog/6-44 2,017 cycles
watchdog/7-50 2,017 cycles
2.175726600 seconds time elapsed
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1512482591-4646-12-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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After perf_evlist__create_maps() being executed, we can get all threads
from /proc. And via thread_map__nr(), we can also get the number of
threads.
With the number of threads, the patch allocates a buffer which will
record the shadow stats for these threads.
The buffer pointer is saved in stat_config.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1512482591-4646-8-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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In previous patches, we have reconstructed the code and let it not
access the static variables directly.
This patch removes these static variables.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1512482591-4646-7-git-send-email-yao.jin@linux.intel.com
[ Rename 'stat' variables to 'st' to build on centos:{5,6} and others where it shadows a global declaration ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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