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| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-01-09 12:03:47 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-01-10 12:00:56 -0300 |
| commit | 2d1073def3cb69aa44f99be7ef42da7cc561be1f (patch) | |
| tree | f317af0831201f8b8f11a88dfc5f6d8f2d890ee4 /tools/perf/builtin-trace.c | |
| parent | perf report: Add --stats option to display quick data statistics (diff) | |
| download | wireguard-linux-2d1073def3cb69aa44f99be7ef42da7cc561be1f.tar.xz wireguard-linux-2d1073def3cb69aa44f99be7ef42da7cc561be1f.zip | |
perf trace: Beautify 'gettid' syscall result
Before:
# trace -a -e gettid sleep 0.01
<SNIP>
4.863 ( 0.005 ms): Chrome_ChildIO/26241 gettid() = 26241
4.931 ( 0.004 ms): Chrome_IOThrea/26154 gettid() = 26154
4.942 ( 0.001 ms): Chrome_IOThrea/26154 gettid() = 26154
4.946 ( 0.001 ms): Chrome_IOThrea/26154 gettid() = 26154
4.970 ( 0.002 ms): Chrome_IOThrea/26154 gettid() = 26154
#
After:
# trace -a -e gettid sleep 0.01
0.000 ( 0.009 ms): Chrome_IOThrea/26154 gettid() = 26154 (Chrome_IOThread)
<SNIP>
3.416 ( 0.002 ms): Chrome_ChildIO/26241 gettid() = 26241 (Chrome_ChildIOT)
3.424 ( 0.001 ms): Chrome_ChildIO/26241 gettid() = 26241 (Chrome_ChildIOT)
3.343 ( 0.002 ms): chrome/26116 gettid() = 26116 (chrome)
3.386 ( 0.002 ms): Chrome_IOThrea/26154 gettid() = 26154 (Chrome_IOThread)
4.003 ( 0.003 ms): Chrome_ChildIO/26241 gettid() = 26241 (Chrome_ChildIOT)
4.031 ( 0.002 ms): Chrome_IOThrea/26154 gettid() = 26154 (Chrome_IOThread)
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-kyg4gz2yy0vkrrh2vtq29u71@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 7c57898095ea..71e64bdca86f 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -622,6 +622,7 @@ static struct syscall_fmt { .arg = { [2] = { .scnprintf = SCA_GETRANDOM_FLAGS, /* flags */ }, }, }, { .name = "getrlimit", .arg = { [0] = STRARRAY(resource, rlimit_resources), }, }, + { .name = "gettid", .errpid = true, }, { .name = "ioctl", .arg = { #if defined(__i386__) || defined(__x86_64__) |