1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
Commit graph

129 commits

Author SHA1 Message Date
Namhyung Kim
c4b41b83c2 perf stat: Rename "aggregate-number" to "cpu-count" in JSON
As the JSON output has been broken for a little while, I guess there are
not many users.  Let's rename the field to more intuitive one. :)

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-15-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:41:28 -03:00
Namhyung Kim
ab6baaae27 perf stat: Fix JSON output in metric-only mode
It generated a broken JSON output when aggregation mode or cgroup is
used with --metric-only option.  Also get rid of the header line and
make the output single line for each entry.

It needs to know whether the current metric is the first one or not.
So add 'first' field in the outstate and mark it false after printing.

Before:

  # perf stat -a -j --metric-only true
  {"unit" : "GHz"}{"unit" : "insn per cycle"}{"unit" : "branch-misses of all branches"}
  {{"metric-value" : "0.797"}{"metric-value" : "1.65"}{"metric-value" : "0.89"}
   ^

  # perf stat -a -j --metric-only --per-socket true
  {"unit" : "GHz"}{"unit" : "insn per cycle"}{"unit" : "branch-misses of all branches"}
  {"socket" : "S0", "aggregate-number" : 8, {"metric-value" : "0.295"}{"metric-value" : "1.88"}{"metric-value" : "0.64"}
                                           ^

After:

  # perf stat -a -j --metric-only true
  {"GHz" : "0.990", "insn per cycle" : "2.06", "branch-misses of all branches" : "0.59"}

  # perf stat -a -j --metric-only --per-socket true
  {"socket" : "S0", "aggregate-number" : 8, "GHz" : "0.439", "insn per cycle" : "2.14", "branch-misses of all branches" : "0.51"}

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-14-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:41:08 -03:00
Namhyung Kim
5f334d88c2 perf stat: Pass through 'struct outstate'
Now most of the print functions take a pointer to the struct outstate.
We have one in the evlist__print_counters() and pass it through the
child functions.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-13-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:40:37 -03:00
Namhyung Kim
0157759749 perf stat: Do not pass runtime_stat to printout()
It always passes a pointer to rt_stat as it's the only one.  Let's not
pass it and directly refer it in the printout().

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-12-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:40:10 -03:00
Namhyung Kim
e7f4da3122 perf stat: Pass struct outstate to printout()
The printout() takes a lot of arguments and sets an outstate with the
value.  Instead, we can fill the outstate first and then pass it to
reduce the number of arguments.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-11-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:39:38 -03:00
Namhyung Kim
922ae948c4 perf stat: Pass 'struct outstate' to print_metric_begin()
It passes prefix and cgroup pointers but the outstate already has them.
Let's pass the outstate pointer instead.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-10-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:39:20 -03:00
Namhyung Kim
92ccf7f11d perf stat: Use 'struct outstate' in evlist__print_counters()
This is a preparation for the later cleanup.  No functional changes
intended.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-9-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:38:53 -03:00
Namhyung Kim
991991ab99 perf stat: Pass const char *prefix to display routines
This is a minor cleanup and preparation for the later change.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-8-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:38:37 -03:00
Namhyung Kim
ce551ec923 perf stat: Remove metric_only argument in print_counter_aggrdata()
It already passes the stat_config argument, then it can find the value in the
config.  No need to pass it separately.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:38:22 -03:00
Namhyung Kim
f123b2d84e perf stat: Remove prefix argument in print_metric_headers()
It always passes a whitespace to the function, thus we can just add it to the
function body.  Furthermore, it's only used in the normal output mode.

Well, actually CSV used it but it doesn't need to since we don't care about the
indentation or alignment in the CSV output.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:37:31 -03:00
Namhyung Kim
a7ec1dd2d7 perf stat: Use scnprintf() in prepare_interval()
It should not use sprintf() anymore.  Let's pass the buffer size and use the
safer scnprintf() instead.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:37:08 -03:00
Namhyung Kim
8e55ae24c0 perf stat: Do not align time prefix in CSV output
We don't care about the alignment in the CSV output as it's intended for machine
processing.  Let's get rid of it to make the output more compact.

Before:

  # perf stat -a --summary -I 1 -x, true
       0.001149309,219.20,msec,cpu-clock,219322251,100.00,219.200,CPUs utilized
       0.001149309,144,,context-switches,219241902,100.00,656.935,/sec
       0.001149309,38,,cpu-migrations,219173705,100.00,173.358,/sec
       0.001149309,61,,page-faults,219093635,100.00,278.285,/sec
       0.001149309,10679310,,cycles,218746228,100.00,0.049,GHz
       0.001149309,6288296,,instructions,218589869,100.00,0.59,insn per cycle
       0.001149309,1386904,,branches,218428851,100.00,6.327,M/sec
       0.001149309,56863,,branch-misses,218219951,100.00,4.10,of all branches
           summary,219.20,msec,cpu-clock,219322251,100.00,20.025,CPUs utilized
           summary,144,,context-switches,219241902,100.00,656.935,/sec
           summary,38,,cpu-migrations,219173705,100.00,173.358,/sec
           summary,61,,page-faults,219093635,100.00,278.285,/sec
           summary,10679310,,cycles,218746228,100.00,0.049,GHz
           summary,6288296,,instructions,218589869,100.00,0.59,insn per cycle
           summary,1386904,,branches,218428851,100.00,6.327,M/sec
           summary,56863,,branch-misses,218219951,100.00,4.10,of all branches

After:

  0.001148449,224.75,msec,cpu-clock,224870589,100.00,224.747,CPUs utilized
  0.001148449,176,,context-switches,224775564,100.00,783.103,/sec
  0.001148449,38,,cpu-migrations,224707428,100.00,169.079,/sec
  0.001148449,61,,page-faults,224629326,100.00,271.416,/sec
  0.001148449,12172071,,cycles,224266368,100.00,0.054,GHz
  0.001148449,6901907,,instructions,224108764,100.00,0.57,insn per cycle
  0.001148449,1515655,,branches,223946693,100.00,6.744,M/sec
  0.001148449,70027,,branch-misses,223735385,100.00,4.62,of all branches
  summary,224.75,msec,cpu-clock,224870589,100.00,21.066,CPUs utilized
  summary,176,,context-switches,224775564,100.00,783.103,/sec
  summary,38,,cpu-migrations,224707428,100.00,169.079,/sec
  summary,61,,page-faults,224629326,100.00,271.416,/sec
  summary,12172071,,cycles,224266368,100.00,0.054,GHz
  summary,6901907,,instructions,224108764,100.00,0.57,insn per cycle
  summary,1515655,,branches,223946693,100.00,6.744,M/sec
  summary,70027,,branch-misses,223735385,100.00,4.62,of all branches

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:36:22 -03:00
Namhyung Kim
6d74ed369d perf stat: Move summary prefix printing logic in CSV output
It matches to the prefix (interval timestamp), so better to have them together.
No functional change intended.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:35:57 -03:00
Namhyung Kim
15792642db perf stat: Fix cgroup display in JSON output
It missed the 'else' keyword after checking json output mode.

Fixes: 41cb875242 ("perf stat: Split print_cgroup() function")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-24 09:35:26 -03:00
Namhyung Kim
4dd7ff4a03 perf stat: Add print_aggr_cgroup() for --for-each-cgroup and --topdown
Normally, --for-each-cgroup only works with AGGR_GLOBAL.  However
the --topdown on some cpu (e.g. Intel Skylake) converts it to the
AGGR_CORE internally.

To support those machines, add print_aggr_cgroup and handle the events
like in print_cgroup_events().

  $ perf stat -a --for-each-cgroup system.slice,user.slice --topdown sleep 1
  nmi_watchdog enabled with topdown. May give wrong results.
  Disable with echo 0 > /proc/sys/kernel/nmi_watchdog

   Performance counter stats for 'system wide':

                               retiring   bad speculation  frontend bound  backend bound
  S0-D0-C0  2  system.slice       49.0%            -46.6%           31.4%
  S0-D0-C1  2  system.slice       55.5%              8.0%           45.5%          -9.0%
  S0-D0-C2  2  system.slice       87.8%             22.1%           30.3%         -40.3%
  S0-D0-C3  2  system.slice       53.3%            -11.9%           45.2%          13.4%
  S0-D0-C0  2  user.slice        123.5%              4.0%           48.5%         -75.9%
  S0-D0-C1  2  user.slice         19.9%              6.5%           89.9%         -16.3%
  S0-D0-C2  2  user.slice         29.9%              7.9%           71.3%          -9.1
  S0-D0-C3  2  user.slice         28.0%              7.2%           43.3%          21.5%

         1.004136937 seconds time elapsed

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-20-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:23 -03:00
Namhyung Kim
67f8b7eb4e perf stat: Support --for-each-cgroup and --metric-only
When we have events for each cgroup, the metric should be printed for
each cgroup separately.  Add print_cgroup_counter() to handle that
situation properly.

Also change print_metric_headers() not to print duplicate headers
by checking cgroups.

  $ perf stat -a --for-each-cgroup system.slice,user.slice --metric-only sleep 1

   Performance counter stats for 'system wide':

                                     GHz       insn per cycle branch-misses of all branches
   system.slice                   3.792                0.61                                3.24%
   user.slice                     3.661                2.32                                0.37%

         1.016111516 seconds time elapsed

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-19-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:23 -03:00
Namhyung Kim
78670daefd perf stat: Factor out print_metric_{begin,end}()
For the metric-only case, add new functions to handle the start and the
end of each metric display.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-18-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:23 -03:00
Namhyung Kim
2cf38236d9 perf stat: Factor out prefix display
The prefix is needed for interval mode to print timestamp at the
beginning of each line.  But the it's tricky for the metric only
mode since it doesn't print every evsel and combines the metrics
into a single line.

So it needed to pass 'first' argument to print_counter_aggrdata()
to determine if the current event is being printed at first.  This
makes the code hard to read.

Let's move the logic out of the function and do it in the outer
print loop.  This would enable further cleanups later.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-17-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:23 -03:00
Namhyung Kim
453279d573 perf stat: Move condition to print_footer()
Likewise, I think it'd better to have the control inside the function, and keep
the higher level function clearer.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-16-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:23 -03:00
Namhyung Kim
4c86b664f4 perf stat: Rework header display
There are print_header() and print_interval() to print header lines before
actual counter values.  Also print_metric_headers() needs to be called for
the metric-only case.

Let's move all these logics to a single place including num_print_iv to
refresh the headers for interval mode.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-15-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:23 -03:00
Namhyung Kim
6108712c07 perf stat: Remove impossible condition
The print would run only if metric_only is not set, but it's already in a
block that says it's in metric_only case.  And there's no place to change
the setting.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-14-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:23 -03:00
Namhyung Kim
33c4ed4799 perf stat: Cleanup interval print alignment
Instead of using magic values, define symbolic constants and use them.
Also add aggr_header_std[] array to simplify aggr_mode handling.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-13-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
208cbcd21b perf stat: Factor out prepare_interval()
This logic does not print the time directly, but it just puts the
timestamp in the buffer as a prefix.  To reduce the confusion, factor
out the code into a separate function.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-12-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
b2d9832e00 perf stat: Split print_metric_headers() function
The print_metric_headers() shows metric headers a little bit for each
mode.  Split it out to make the code clearer.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-11-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
8d500292bd perf stat: Align cgroup names
We don't know how long cgroup name is, but at least we can align short
ones like below.

  $ perf stat -a --for-each-cgroup system.slice,user.slice true

   Performance counter stats for 'system wide':

           0.13 msec cpu-clock         system.slice  #    0.010 CPUs utilized
              4      context-switches  system.slice  #   31.989 K/sec
              1      cpu-migrations    system.slice  #    7.997 K/sec
              0      page-faults       system.slice  #    0.000 /sec
        450,673      cycles            system.slice  #    3.604 GHz             (92.41%)
        161,216      instructions      system.slice  #    0.36  insn per cycle  (92.41%)
         32,678      branches          system.slice  #  261.332 M/sec           (92.41%)
          2,628      branch-misses     system.slice  #    8.04% of all branches (92.41%)
          14.29 msec cpu-clock         user.slice    #    1.163 CPUs utilized
             35      context-switches  user.slice    #    2.449 K/sec
             12      cpu-migrations    user.slice    #  839.691 /sec
             57      page-faults       user.slice    #    3.989 K/sec
     49,683,026      cycles            user.slice    #    3.477 GHz             (99.38%)
    110,790,266      instructions      user.slice    #    2.23  insn per cycle  (99.38%)
     24,552,255      branches          user.slice    #    1.718 G/sec           (99.38%)
        127,779      branch-misses     user.slice    #    0.52% of all branches (99.38%)

    0.012289431 seconds time elapsed

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-10-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
df46a3c92b perf stat: Add before_metric argument
Unfortunately, event running time, percentage and noise data are printed
in different positions in normal output than CSV/JSON.  I think it's
better to put such details in where it actually prints.

So add before_metric argument to print_noise() and print_running() and
call them twice before and after the metric.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-9-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
d6aeb861b1 perf stat: Handle bad events in abs_printout()
In the printout() function, it checks if the event is bad (i.e. not
counted or not supported) and print the result.  But it does the same
what abs_printout() is doing.  So add an argument to indicate the value
is ok or not and use the same function in both cases.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-8-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
c2019f844e perf stat: Factor out print_counter_value() function
And split it for each output mode like others.  I believe it makes the
code simpler and more intuitive.  Now abs_printout() becomes just to
call sub-functions.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
33b2e2c2ad perf stat: Split aggr_printout() function
The aggr_printout() function is to print aggr_id and count (nr).
Split it for each output mode to simplify the code.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
41cb875242 perf stat: Split print_cgroup() function
Likewise, split print_cgroup() for each output mode.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
def99d60df perf stat: Split print_noise_pct() function
Likewise, split print_noise_pct() for each output mode.  Although it's
a tiny function, more logic will be added soon so it'd be better split
it and treat it in the same way.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
31bf6aea99 perf stat: Split print_running() function
To make the code more obvious and hopefully simpler, factor out the
code for each output mode - stdio, CSV, JSON.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221114230227.1255976-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 09:51:22 -03:00
Namhyung Kim
7565f9617e perf stat: Add missing separator in the CSV header
It should have a comma after 'cpus' for socket and die aggregation mode.
The output of the following command shows the issue.

  $ sudo perf stat -a --per-socket -x, --metric-only -I1 true

Before:

                  +--- here
                  V
   time,socket,cpusGhz,insn per cycle,branch-misses of all branches,
       0.000908461,S0,8,0.950,1.65,1.21,

After:

   time,socket,cpus,GHz,insn per cycle,branch-misses of all branches,
       0.000683094,S0,8,0.593,2.00,0.60,

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221112032244.1077370-12-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 16:18:52 -03:00
Namhyung Kim
a80e0e156c perf stat: Fix summary output in CSV with --metric-only
It should not print "summary" for each event when --metric-only is set.

Before:

  $ sudo perf stat -a --per-socket --summary -x, --metric-only true
   time,socket,cpusGhz,insn per cycle,branch-misses of all branches,
       0.000709079,S0,8,0.893,2.40,0.45,
  S0,8,         summary,         summary,         summary,         summary,         summary,0.893,         summary,2.40,         summary,         summary,0.45,

After:

  $ sudo perf stat -a --per-socket --summary -x, --metric-only true
   time,socket,cpusGHz,insn per cycle,branch-misses of all branches,
       0.000882297,S0,8,0.598,1.64,0.64,
           summary,S0,8,0.598,1.64,0.64,

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221112032244.1077370-11-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 16:18:34 -03:00
Arnaldo Carvalho de Melo
638c335a47 Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes that went thru perf/urgent.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 16:12:23 -03:00
Namhyung Kim
20e2e31779 perf stat: Consolidate condition to print metrics
The pm variable holds an appropriate function to print metrics for CSV
anf JSON already.  So we can combine the if statement to simplify the
code a little bit.  This also matches to the above condition for non-CSV
and non-JSON case.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221107213314.3239159-10-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 13:21:19 -03:00
Namhyung Kim
f1db5a1d1d perf stat: Fix condition in print_interval()
The num_print_interval and config->interval_clear should be checked
together like other places like later in the function.  Otherwise,
the --interval-clear option could print the headers for the CSV or
JSON output unnecessarily.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221107213314.3239159-9-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 13:21:19 -03:00
Namhyung Kim
1cc7642abb perf stat: Add header for interval in JSON output
It missed to print a matching header line for intervals.

Before:

  # perf stat -a -e cycles,instructions --metric-only -j -I 500
  {"unit" : "insn per cycle"}
  {"interval" : 0.500544283}{"metric-value" : "1.96"}
  ^C

After:

  # perf stat -a -e cycles,instructions --metric-only -j -I 500
  {"unit" : "sec"}{"unit" : "insn per cycle"}
  {"interval" : 0.500515681}{"metric-value" : "2.31"}
  ^C

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221107213314.3239159-8-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 13:21:19 -03:00
Namhyung Kim
6d0a7e394e perf stat: Do not indent headers for JSON
Currently --metric-only with --json indents header lines.  This is not
needed for JSON.

  $ perf stat -aA --metric-only -j true
        {"unit" : "GHz"}{"unit" : "insn per cycle"}{"unit" : "branch-misses of all branches"}
  {"cpu" : "0", {"metric-value" : "0.101"}{"metric-value" : "0.86"}{"metric-value" : "1.91"}
  {"cpu" : "1", {"metric-value" : "0.102"}{"metric-value" : "0.87"}{"metric-value" : "2.02"}
  {"cpu" : "2", {"metric-value" : "0.085"}{"metric-value" : "1.02"}{"metric-value" : "1.69"}
  ...

Note that the other lines are broken JSON, but it will be handled later.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221107213314.3239159-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 13:21:19 -03:00
Namhyung Kim
fdc7d60824 perf stat: Fix --metric-only --json output
Currently it prints all metric headers for JSON output.  But actually it
skips some metrics with valid_only_metric().  So the output looks like:

  $ perf stat --metric-only --json true
  {"unit" : "CPUs utilized", "unit" : "/sec", "unit" : "/sec", "unit" : "/sec", "unit" : "GHz", "unit" : "insn per cycle", "unit" : "/sec", "unit" : "branch-misses of all branches"}
  {"metric-value" : "3.861"}{"metric-value" : "0.79"}{"metric-value" : "3.04"}

As you can see there are 8 units in the header but only 3 metric-values
are there.  It should skip the unused headers as well.  Also each unit
should be printed as a separate object like metric values.

With this patch:

  $ perf stat --metric-only --json true
  {"unit" : "GHz"}{"unit" : "insn per cycle"}{"unit" : "branch-misses of all branches"}
  {"metric-value" : "4.166"}{"metric-value" : "0.73"}{"metric-value" : "2.96"}

Fixes: df936cadfb ("perf stat: Add JSON output option")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Claire Jensen <cjense@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221107213314.3239159-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 13:21:19 -03:00
Namhyung Kim
f4e55f88da perf stat: Move common code in print_metric_headers()
The struct perf_stat_output_ctx is set in a loop with the same values.
Move the code out of the loop and keep the loop minimal.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221107213314.3239159-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 13:21:19 -03:00
Namhyung Kim
81a02c6577 perf stat: Clear screen only if output file is a tty
The --interval-clear option makes perf stat to clear the terminal at
each interval.  But it doesn't need to clear the screen when it saves
to a file.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221107213314.3239159-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 13:21:19 -03:00
Namhyung Kim
4ea0be1f0d perf stat: Increase metric length to align outputs
When perf stat is called with very detailed events, the output doesn't
align well like below:

  $ sudo perf stat -a -ddd sleep 1

   Performance counter stats for 'system wide':

          8,020.23 msec cpu-clock                        #    7.997 CPUs utilized
             3,970      context-switches                 #  494.998 /sec
               169      cpu-migrations                   #   21.072 /sec
               586      page-faults                      #   73.065 /sec
       649,568,060      cycles                           #    0.081 GHz                      (30.42%)
       304,044,345      instructions                     #    0.47  insn per cycle           (38.40%)
        60,313,022      branches                         #    7.520 M/sec                    (38.89%)
         2,766,919      branch-misses                    #    4.59% of all branches          (39.26%)
        74,422,951      L1-dcache-loads                  #    9.279 M/sec                    (39.39%)
         8,025,568      L1-dcache-load-misses            #   10.78% of all L1-dcache accesses  (39.22%)
         3,314,995      LLC-loads                        #  413.329 K/sec                    (30.83%)
         1,225,619      LLC-load-misses                  #   36.97% of all LL-cache accesses  (30.45%)
   <not supported>      L1-icache-loads
        20,420,493      L1-icache-load-misses            #    0.00% of all L1-icache accesses  (30.29%)
        58,017,947      dTLB-loads                       #    7.234 M/sec                    (30.37%)
           704,677      dTLB-load-misses                 #    1.21% of all dTLB cache accesses  (30.27%)
           234,225      iTLB-loads                       #   29.204 K/sec                    (30.29%)
           417,166      iTLB-load-misses                 #  178.10% of all iTLB cache accesses  (30.32%)
   <not supported>      L1-dcache-prefetches
   <not supported>      L1-dcache-prefetch-misses

       1.002947355 seconds time elapsed

Increase the METRIC_LEN by 3 so that it can align properly.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221107213314.3239159-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-14 13:21:19 -03:00
Athira Rajeev
ad353b710c perf stat: Fix printing os->prefix in CSV metrics output
'perf stat' with CSV output option prints an extra empty string as first
field in metrics output line.  Sample output below:

	# ./perf stat -x, --per-socket -a -C 1 ls
	S0,1,1.78,msec,cpu-clock,1785146,100.00,0.973,CPUs utilized
	S0,1,26,,context-switches,1781750,100.00,0.015,M/sec
	S0,1,1,,cpu-migrations,1780526,100.00,0.561,K/sec
	S0,1,1,,page-faults,1779060,100.00,0.561,K/sec
	S0,1,875807,,cycles,1769826,100.00,0.491,GHz
	S0,1,85281,,stalled-cycles-frontend,1767512,100.00,9.74,frontend cycles idle
	S0,1,576839,,stalled-cycles-backend,1766260,100.00,65.86,backend cycles idle
	S0,1,288430,,instructions,1762246,100.00,0.33,insn per cycle
====>	,S0,1,,,,,,,2.00,stalled cycles per insn

The above command line uses field separator as "," via "-x," option and
per-socket option displays socket value as first field. But here the
last line for "stalled cycles per insn" has "," in the beginning.

Sample output using interval mode:

	# ./perf stat -I 1000 -x, --per-socket -a -C 1 ls
	0.001813453,S0,1,1.87,msec,cpu-clock,1872052,100.00,0.002,CPUs utilized
	0.001813453,S0,1,2,,context-switches,1868028,100.00,1.070,K/sec
	------
	0.001813453,S0,1,85379,,instructions,1856754,100.00,0.32,insn per cycle
====>	0.001813453,,S0,1,,,,,,,1.34,stalled cycles per insn

Above result also has an extra CSV separator after
the timestamp. Patch addresses extra field separator
in the beginning of the metric output line.

The counter stats are displayed by function
"perf_stat__print_shadow_stats" in code
"util/stat-shadow.c". While printing the stats info
for "stalled cycles per insn", function "new_line_csv"
is used as new_line callback.

The new_line_csv function has check for "os->prefix"
and if prefix is not null, it will be printed along
with cvs separator.
Snippet from "new_line_csv":
	if (os->prefix)
               fprintf(os->fh, "%s%s", os->prefix, config->csv_sep);

Here os->prefix gets printed followed by ","
which is the cvs separator. The os->prefix is
used in interval mode option ( -I ), to print
time stamp on every new line. But prefix is
already set to contain CSV separator when used
in interval mode for CSV option.

Reference: Function "static void print_interval"
Snippet:
	sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, config->csv_sep);

Also if prefix is not assigned (if not used with
-I option), it gets set to empty string.
Reference: function printout() in util/stat-display.c
Snippet:
	.prefix = prefix ? prefix : "",

Since prefix already set to contain cvs_sep in interval
option, patch removes printing config->csv_sep in
new_line_csv function to avoid printing extra field.

After the patch:

	# ./perf stat -x, --per-socket -a -C 1 ls
	S0,1,2.04,msec,cpu-clock,2045202,100.00,1.013,CPUs utilized
	S0,1,2,,context-switches,2041444,100.00,979.289,/sec
	S0,1,0,,cpu-migrations,2040820,100.00,0.000,/sec
	S0,1,2,,page-faults,2040288,100.00,979.289,/sec
	S0,1,254589,,cycles,2036066,100.00,0.125,GHz
	S0,1,82481,,stalled-cycles-frontend,2032420,100.00,32.40,frontend cycles idle
	S0,1,113170,,stalled-cycles-backend,2031722,100.00,44.45,backend cycles idle
	S0,1,88766,,instructions,2030942,100.00,0.35,insn per cycle
	S0,1,,,,,,,1.27,stalled cycles per insn

Fixes: 92a61f6412 ("perf stat: Implement CSV metrics output")
Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Reviewed-By: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20221018085605.63834-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-08 17:52:18 -03:00
Namhyung Kim
84d1b20132 perf stat: Fix crash with --per-node --metric-only in CSV mode
The following command will get segfault due to missing aggr_header_csv
for AGGR_NODE:

  $ sudo perf stat -a --per-node -x, --metric-only true

Committer testing:

Before this patch:

  # perf stat -a --per-node -x, --metric-only true
  Segmentation fault (core dumped)
  #

After:

  # gdb perf
  -bash: gdb: command not found
  # perf stat -a --per-node -x, --metric-only true
  node,Ghz,frontend cycles idle,backend cycles idle,insn per cycle,branch-misses of all branches,
  N0,32,0.335,2.10,0.65,0.69,0.03,1.92,
  #

Fixes: 86895b480a ("perf stat: Add --per-node agregation support")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: http://lore.kernel.org/lkml/20221107213314.3239159-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-08 17:47:33 -03:00
Namhyung Kim
cec94d6963 perf stat: Display percore events properly
The recent change in the perf stat broke the percore event display.
Note that the aggr counts are already processed so that the every
sibling thread in the same core will get the per-core counter values.

Check percore evsels and skip the sibling threads in the display.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221018020227.85905-20-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-27 16:37:25 -03:00
Namhyung Kim
91f85f98da perf stat: Display event stats using aggr counts
Now aggr counts are ready for use.  Convert the display routines to use
the aggr counts and update the shadow stat with them.  It doesn't need
to aggregate counts or collect aliases anymore during the display.  Get
rid of now unused struct perf_aggr_thread_value.

Note that there's a difference in the display order among the aggr mode.
For per-core/die/socket/node aggregation, it shows relevant events in
the same unit together, whereas global/thread/no aggregation it shows
the same events for different units together.  So it still uses separate
codes to display them due to the ordering.

One more thing to note is that it breaks per-core event display for now.
The next patch will fix it to have identical output as of now.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221018020227.85905-19-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-27 16:37:25 -03:00
Namhyung Kim
93d5e70015 perf stat: Use evsel__is_hybrid() more
In the stat-display code, it needs to check if the current evsel is
hybrid but it uses perf_pmu__has_hybrid() which can return true for
non-hybrid event too.  I think it's better to use evsel__is_hybrid().

Also remove a NULL check for the 'config' parameter in the
hybrid_merge() since it's called after config->no_merge check.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221018020227.85905-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-27 16:37:25 -03:00
Athira Rajeev
cad3b68954 perf stat: Fix cpu check to use id.cpu.cpu in aggr_printout()
'perf stat' has options to aggregate the counts in different modes like
per socket, per core etc. The function "aggr_printout" in
util/stat-display.c which is used to print the aggregates, has a check
for cpu in case of AGGR_NONE.

This check was originally using condition : "if (id.cpu.cpu > -1)". But
this got changed after commit df936cadfb ("perf stat: Add JSON output
option"), which added option to output json format for different
aggregation modes. After this commit, the check in "aggr_printout" is
using "if (id.core > -1)".

The old code was using "id.cpu.cpu > -1" while the new code is using
"id.core > -1". But since the value printed is id.cpu.cpu, fix this
check to use cpu and not core.

Suggested-by: Ian Rogers <irogers@google.com>
Suggested-by: James Clark <james.clark@arm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20221006114225.66303-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-06 14:50:55 -03:00
Namhyung Kim
fa2edc07b4 perf stat: Rename to aggr_cpu_id.thread_idx
The aggr_cpu_id has a thread value but it's actually an index to the
thread_map.  To reduce possible confusion, rename it to thread_idx.

Suggested-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220930202110.845199-8-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-10-06 08:03:53 -03:00