]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
perf stat: Fix --interval_clear option
authorJiri Olsa <jolsa@kernel.org>
Mon, 2 Jul 2018 13:42:02 +0000 (15:42 +0200)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Wed, 11 Jul 2018 13:43:03 +0000 (09:43 -0400)
commitc818cc063089e78bc31845d1eb6a1f0bedee1eae
tree10dd398a2c69f43f6fa2b2edf497d550dd3c8940
parenta09603f851045b031e990d2d663958ccb49db525
perf stat: Fix --interval_clear option

Currently we display extra header line, like:

  # perf stat -I 1000 -a --interval-clear
  #           time             counts unit events
         insn per cycle branch-misses of all branches
       2.964917103        3855.349912      cpu-clock (msec)          #    3.855 CPUs utilized
       2.964917103             23,993      context-switches          #    0.006 M/sec
       2.964917103              1,301      cpu-migrations            #    0.329 K/sec
       ...

Fixing the condition and getting proper:

  # perf stat -I 1000 -a --interval-clear
  #           time             counts unit events
       2.359048938        1432.492228      cpu-clock (msec)          #    1.432 CPUs utilized
       2.359048938              7,613      context-switches          #    0.002 M/sec
       2.359048938                419      cpu-migrations            #    0.133 K/sec
       ...

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>
Fixes: 9660e08ee8cb ("perf stat: Add --interval-clear option")
Link: http://lkml.kernel.org/r/20180702134202.17745-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/builtin-stat.c