diff options
| -rw-r--r-- | tools/perf/Documentation/perf-sched.txt | 3 | ||||
| -rw-r--r-- | tools/perf/builtin-sched.c | 23 |
2 files changed, 26 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-sched.txt b/tools/perf/Documentation/perf-sched.txt index 58bff6cbc3f3..1cc08cc47ac5 100644 --- a/tools/perf/Documentation/perf-sched.txt +++ b/tools/perf/Documentation/perf-sched.txt @@ -57,6 +57,9 @@ OPTIONS for 'perf sched map' Show only CPUs with activity. Helps visualizing on high core count systems. +--cpus:: + Show just entries with activities for the given CPUs. + --color-cpus:: Highlight the given cpus. 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[] = { |