OSDN Git Service

perf kwork: Add irq kwork record support
authorYang Jihong <yangjihong1@huawei.com>
Sat, 9 Jul 2022 01:50:18 +0000 (09:50 +0800)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Tue, 26 Jul 2022 19:01:29 +0000 (16:01 -0300)
commit4f8ae962f0f71c682f97be5a9491694f9fbd814a
treeb2f2657cd1452831ec50fbbd2cb853c8da68d8b4
parent0f70d8e9db4f250f694a3befe88501027b1dc88e
perf kwork: Add irq kwork record support

Record interrupt events irq:irq_handler_entry & irq_handler_exit

Test cases:

 # perf kwork record -o perf_kwork.date -- sleep 1
  [ perf record: Woken up 0 times to write data ]
  [ perf record: Captured and wrote 0.556 MB perf_kwork.date ]
  #
  # perf evlist -i perf_kwork.date
  irq:irq_handler_entry
  irq:irq_handler_exit
  dummy:HG
  # Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events
  #

Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
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>
Link: https://lore.kernel.org/r/20220709015033.38326-3-yangjihong1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/Documentation/perf-kwork.txt
tools/perf/builtin-kwork.c
tools/perf/util/kwork.h