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| author | Jiri Olsa <jolsa@kernel.org> | 2016-04-12 16:29:31 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-13 16:11:52 +0300 |
| commit | 73643bb6a21c85509c7ae4c316f502c5a19cce65 (patch) | |
| tree | 7b6012a5e736141efad95411a79431d02f4fd166 /tools/perf/builtin-sched.c | |
| parent | cf294f24f8c83bca6aa8e96b5cc4f78bed887f92 (diff) | |
| download | linux-73643bb6a21c85509c7ae4c316f502c5a19cce65.tar.xz | |
perf sched map: Display only given cpus
Introducing --cpus option that will display only given cpus. Could be
used together with color-cpus option.
$ perf sched map --cpus 0,1
*A0 309999.786924 secs A0 => rcu_sched:7
*. 309999.786930 secs
*B0 . 309999.786931 secs B0 => rcuos/2:25
B0 *A0 309999.786947 secs
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1460467771-26532-9-git-send-email-jolsa@kernel.org
[ Added entry to man page ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-sched.c')
| -rw-r--r-- | tools/perf/builtin-sched.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index 7de04b297c14..afa057666c2a 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -135,6 +135,8 @@ struct perf_sched_map { const char *color_pids_str; struct cpu_map *color_cpus; const char *color_cpus_str; + struct cpu_map *cpus; + const char *cpus_str; }; struct perf_sched { @@ -1469,6 +1471,9 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel, if (curr_thread && thread__has_color(curr_thread)) pid_color = COLOR_PIDS; + if (sched->map.cpus && !cpu_map__has(sched->map.cpus, cpu)) + continue; + if (sched->map.color_cpus && cpu_map__has(sched->map.color_cpus, cpu)) cpu_color = COLOR_CPUS; @@ -1483,6 +1488,9 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel, color_fprintf(stdout, color, " "); } + if (sched->map.cpus && !cpu_map__has(sched->map.cpus, this_cpu)) + goto out; + color_fprintf(stdout, color, " %12.6f secs ", (double)timestamp/1e9); if (new_shortname) { const char *pid_color = color; @@ -1497,6 +1505,7 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel, if (sched->map.comp && new_cpu) color_fprintf(stdout, color, " (CPU %d)", this_cpu); +out: color_fprintf(stdout, color, "\n"); thread__put(sched_in); @@ -1756,6 +1765,8 @@ static int perf_sched__lat(struct perf_sched *sched) static int setup_map_cpus(struct perf_sched *sched) { + struct cpu_map *map; + sched->max_cpu = sysconf(_SC_NPROCESSORS_CONF); if (sched->map.comp) { @@ -1764,6 +1775,16 @@ static int setup_map_cpus(struct perf_sched *sched) return -1; } + if (!sched->map.cpus_str) + return 0; + + map = cpu_map__new(sched->map.cpus_str); + if (!map) { + pr_err("failed to get cpus map from %s\n", sched->map.cpus_str); + return -1; + } + + sched->map.cpus = map; return 0; } @@ -1971,6 +1992,8 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused) "highlight given pids in map"), OPT_STRING(0, "color-cpus", &sched.map.color_cpus_str, "cpus", "highlight given CPUs in map"), + OPT_STRING(0, "cpus", &sched.map.cpus_str, "cpus", + "display given CPUs in map"), OPT_END() }; const char * const latency_usage[] = { |