diff options
| author | Yang Jihong <yangjihong1@huawei.com> | 2022-07-09 04:50:18 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-07-26 22:01:29 +0300 |
| commit | 4f8ae962f0f71c682f97be5a9491694f9fbd814a (patch) | |
| tree | b2f2657cd1452831ec50fbbd2cb853c8da68d8b4 /tools/perf/Documentation | |
| parent | 0f70d8e9db4f250f694a3befe88501027b1dc88e (diff) | |
| download | linux-4f8ae962f0f71c682f97be5a9491694f9fbd814a.tar.xz | |
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>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-kwork.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-kwork.txt b/tools/perf/Documentation/perf-kwork.txt index dc1e36da57bb..57bd5fa7d5c9 100644 --- a/tools/perf/Documentation/perf-kwork.txt +++ b/tools/perf/Documentation/perf-kwork.txt @@ -32,7 +32,7 @@ OPTIONS -k:: --kwork:: - List of kwork to profile + List of kwork to profile (irq, etc) -v:: --verbose:: |