From: Arnaldo Carvalho de Melo Date: Wed, 24 Oct 2012 19:24:47 +0000 (-0200) Subject: perf trace: Add an event duration column X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=60c907abc635622964f7862c8f2977182124f89d;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git perf trace: Add an event duration column # perf trace usleep 1 | tail -10 0.453 ( 0.002 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763342848 0.456 ( 0.001 ms): mmap(addr: 0, len: 4096, prot: 3, flags: 34, fd: 4294967295, off: 0 ) = -763346944 0.459 ( 0.001 ms): arch_prctl(option: 4098, arg2: 140126839658240, arg3: 140126839652352, arg4: 34, arg5: 4294967295) = 0 0.473 ( 0.003 ms): mprotect(start: 208741634048, len: 16384, prot: 1 ) = 0 0.477 ( 0.003 ms): mprotect(start: 208735956992, len: 4096, prot: 1 ) = 0 0.483 ( 0.004 ms): munmap(addr: 140126839664640, len: 91882 ) = 0 0.540 ( 0.001 ms): brk(brk: 0 ) = 31928320 0.542 ( 0.002 ms): brk(brk: 32063488 ) = 32063488 1.456 ( 0.901 ms): nanosleep(rqtp: 140735472817168, rmtp: 0 ) = 0 1.462 ( 0.000 ms): exit_group(error_code: 0 # This also comes from the tmp.perf/trace2 branch. Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Link: http://lkml.kernel.org/n/tip-g9akh5hjw2kvjerpo9xror6f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 873f50b10cc9..ddb6e3721b1a 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -46,6 +46,20 @@ struct syscall { struct syscall_fmt *fmt; }; +static size_t fprintf_duration(unsigned long t, FILE *fp) +{ + double duration = (double)t / NSEC_PER_MSEC; + size_t printed = fprintf(fp, "("); + + if (duration >= 1.0) + printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); + else if (duration >= 0.01) + printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); + else + printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); + return printed + fprintf(stdout, "): "); +} + struct thread_trace { u64 entry_time; u64 exit_time; @@ -92,7 +106,7 @@ static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) { double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; - return fprintf(fp, "%10.3f: ", ts); + return fprintf(fp, "%10.3f ", ts); } static bool done = false; @@ -103,9 +117,10 @@ static void sig_handler(int sig __maybe_unused) } static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, - u64 tstamp, FILE *fp) + u64 duration, u64 tstamp, FILE *fp) { size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); + printed += fprintf_duration(duration, fp); if (trace->multiple_threads) printed += fprintf(fp, "%d ", thread->pid); @@ -292,7 +307,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed, args); if (!strcmp(sc->name, "exit_group") || !strcmp(sc->name, "exit")) { - trace__fprintf_entry_head(trace, thread, sample->time, stdout); + trace__fprintf_entry_head(trace, thread, 1, sample->time, stdout); printf("%-70s\n", ttrace->entry_str); } else ttrace->entry_pending = true; @@ -304,6 +319,7 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, struct perf_sample *sample) { int ret; + u64 duration = 0; struct thread *thread = machine__findnew_thread(&trace->host, sample->tid); struct thread_trace *ttrace = thread__trace(thread); struct syscall *sc = trace__syscall_info(trace, evsel, sample); @@ -317,7 +333,10 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, ttrace->exit_time = sample->time; - trace__fprintf_entry_head(trace, thread, sample->time, stdout); + if (ttrace->entry_time) + duration = sample->time - ttrace->entry_time; + + trace__fprintf_entry_head(trace, thread, duration, sample->time, stdout); if (ttrace->entry_pending) { printf("%-70s", ttrace->entry_str);