diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-14 11:32:02 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-18 12:24:01 -0300 |
| commit | 9d6dc178f0c9e40e61f45d2ac86baa8ad77cb052 (patch) | |
| tree | 0aca597f2c4f5a6f8673a0cf6df39286fadab7ce /tools/perf/Documentation | |
| parent | b036146fd0f99209e87877115d090c69da2ab747 (diff) | |
perf trace: Allow suppressing the syscall argument names
To show just the values:
Default:
# trace -e open*,close,*sleep sleep 1
openat(dfd: CWD, filename: /etc/ld.so.cache, flags: CLOEXEC ) = 3
close(fd: 3 ) = 0
openat(dfd: CWD, filename: /lib64/libc.so.6, flags: CLOEXEC ) = 3
close(fd: 3 ) = 0
openat(dfd: CWD, filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3
close(fd: 3 ) = 0
nanosleep(rqtp: 0x7ffc0c4ea0d0, rmtp: 0 ) = 0
close(fd: 1 ) = 0
close(fd: 2 ) = 0
#
Remove it:
# perf config trace.show_arg_names=no
# trace -e open*,close,*sleep sleep 1
openat(CWD, /etc/ld.so.cache, CLOEXEC ) = 3
close(3 ) = 0
openat(CWD, /lib64/libc.so.6, CLOEXEC ) = 3
close(3 ) = 0
openat(CWD, /usr/lib/locale/locale-archive, CLOEXEC ) = 3
close(3 ) = 0
nanosleep(0x7ffced3a8c40, 0 ) = 0
close(1 ) = 0
close(2 ) = 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-ta9tbdwgodpw719sr2bjm8eb@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 ecd1e9514925..35108fd61fa6 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -532,6 +532,10 @@ trace.*:: trace.no_inherit:: Do not follow children threads. + trace.show_arg_names:: + Should syscall argument names be printed? If not then trace.show_zeros + will be set. + trace.show_duration:: Show syscall duration. |