• Alexey Budankov's avatar
    perf script: Extend misc field decoding with switch out event type · bf30cc18
    Alexey Budankov authored
    Append 'p' sign to 'S' tag designating the type of context switch out event so
    'Sp' means preemption context switch. Documentation is extended to cover
    new presentation changes.
    
      $ perf script --show-switch-events -F +misc -I -i perf.data:
    
              hdparm 4073 [004] U  762.198265:     380194 cycles:ppp:      7faf727f5a23 strchr (/usr/lib64/ld-2.26.so)
              hdparm 4073 [004] K  762.198366:     441572 cycles:ppp:  ffffffffb9218435 alloc_set_pte (/lib/modules/4.16.0-rc6+/build/vmlinux)
              hdparm 4073 [004] S  762.198391: PERF_RECORD_SWITCH_CPU_WIDE OUT          next pid/tid:    0/0
             swapper    0 [004]    762.198392: PERF_RECORD_SWITCH_CPU_WIDE IN           prev pid/tid: 4073/4073
             swapper    0 [004] Sp 762.198477: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt  next pid/tid: 4073/4073
              hdparm 4073 [004]    762.198478: PERF_RECORD_SWITCH_CPU_WIDE IN           prev pid/tid:    0/0
             swapper    0 [007] K  762.198514:    2303073 cycles:ppp:  ffffffffb98b0c66 intel_idle (/lib/modules/4.16.0-rc6+/build/vmlinux)
             swapper    0 [007] Sp 762.198561: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt  next pid/tid: 1134/1134
      kworker/u16:18 1134 [007]    762.198562: PERF_RECORD_SWITCH_CPU_WIDE IN           prev pid/tid:    0/0
      kworker/u16:18 1134 [007] S  762.198567: PERF_RECORD_SWITCH_CPU_WIDE OUT          next pid/tid:    0/0
    Signed-off-by: default avatarAlexey Budankov <alexey.budankov@linux.intel.com>
    Tested-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
    Cc: Andi Kleen <ak@linux.intel.com>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Link: http://lkml.kernel.org/r/5fc65ce7-8ca5-53ae-8858-8ddd27290575@linux.intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    bf30cc18
builtin-script.c 90.8 KB