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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-14 17:17:19 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-18 18:24:01 +0300 |
| commit | b036146fd0f99209e87877115d090c69da2ab747 (patch) | |
| tree | 42d567ed302025906cc3a6361ef4b3b91b10b350 /tools/perf/builtin-trace.c | |
| parent | d32de87e734191698dd1834146ee65ebd0f5e240 (diff) | |
| download | linux-b036146fd0f99209e87877115d090c69da2ab747.tar.xz | |
perf trace: Allow configuring if the syscall start timestamp should be printed
# trace -e open*,close,*sleep sleep 1
0.000 openat(dfd: CWD, filename: /etc/ld.so.cache, flags: CLOEXEC ) = 3
0.016 close(fd: 3 ) = 0
0.024 openat(dfd: CWD, filename: /lib64/libc.so.6, flags: CLOEXEC ) = 3
0.074 close(fd: 3 ) = 0
0.235 openat(dfd: CWD, filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3
0.251 close(fd: 3 ) = 0
0.285 nanosleep(rqtp: 0x7ffd68e6d620, rmtp: 0 ) = 0
1000.386 close(fd: 1 ) = 0
1000.395 close(fd: 2 ) = 0
#
# perf config trace.show_timestamp=no
# 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: , flags: CLOEXEC ) = 3
close(fd: 3 ) = 0
nanosleep(rqtp: 0x7fffa79c38e0, rmtp: 0 ) = 0
close(fd: 1 ) = 0
close(fd: 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-mjjnicy48367jah6ls4k0nk8@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 | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index a4e2290e57e0..e978ce034863 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -127,6 +127,7 @@ struct trace { bool show_tool_stats; bool trace_syscalls; bool kernel_syscallchains; + bool show_tstamp; bool show_duration; bool show_zeros; bool force; @@ -1215,7 +1216,10 @@ static size_t trace__fprintf_comm_tid(struct trace *trace, struct thread *thread static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, u64 duration, bool duration_calculated, u64 tstamp, FILE *fp) { - size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); + size_t printed = 0; + + if (trace->show_tstamp) + printed = trace__fprintf_tstamp(trace, tstamp, fp); if (trace->show_duration) printed += fprintf_duration(duration, duration_calculated, fp); return printed + trace__fprintf_comm_tid(trace, thread, fp); @@ -3538,6 +3542,8 @@ static int trace__config(const char *var, const char *value, void *arg) "event selector. use 'perf list' to list available events", parse_events_option); err = parse_events_option(&o, value, 0); + } else if (!strcmp(var, "trace.show_timestamp")) { + trace->show_tstamp = perf_config_bool(var, value); } else if (!strcmp(var, "trace.show_duration")) { trace->show_duration = perf_config_bool(var, value); } else if (!strcmp(var, "trace.show_zeros")) { @@ -3574,6 +3580,7 @@ int cmd_trace(int argc, const char **argv) }, .output = stderr, .show_comm = true, + .show_tstamp = true, .show_duration = true, .trace_syscalls = false, .kernel_syscallchains = false, |