• Jiri Olsa's avatar
    perf stat: Fix --interval_clear option · c818cc06
    Jiri Olsa authored
    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: default avatarJiri Olsa <jolsa@kernel.org>
    Tested-by: default avatarArnaldo 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: 9660e08e ("perf stat: Add --interval-clear option")
    Link: http://lkml.kernel.org/r/20180702134202.17745-2-jolsa@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    c818cc06
builtin-stat.c 77.5 KB