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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-14 16:22:18 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-18 18:24:00 +0300 |
| commit | 42e4a52d01d087e7ce069049799e3e336eaec101 (patch) | |
| tree | 9a812d7b721179d79bc2c7c72c9d65e3cb1d8fdb /tools/perf/Documentation | |
| parent | e7c634fcc6ff921d725ba988cdb198ca8b59a39f (diff) | |
| download | linux-42e4a52d01d087e7ce069049799e3e336eaec101.tar.xz | |
perf trace: Allow configuring if the syscall duration should be printed
# perf config trace.show_duration=no
# perf config -l | grep trace
trace.default_events=/home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
trace.show_zeros=true
trace.show_duration=no
# trace -e *sleep sleep 1
0.000 sleep/8729 nanosleep(rqtp: 0x7ffcb0b4c940, rmtp: 0) = 0
# perf config trace.show_duration=yes
# trace -e *sleep sleep 1
0.000 (1000.212 ms): sleep/8735 nanosleep(rqtp: 0x7ffca15fa770, rmtp: 0) = 0
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-2c7h1m8fhzb9puxtj9nlevi8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-config.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index b55bd16c77fe..0d641b0d15ae 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -528,6 +528,10 @@ trace.*:: The initial use case is to add augmented_raw_syscalls.o to activate the 'perf trace' logic that looks for syscall pointer contents after the normal tracepoint payload. + + trace.show_duration:: + Show syscall duration. + trace.show_zeros:: Do not suppress syscall arguments that are equal to zero. |