Adding --color-pids option to display selected pids in color (blue by default). It helps on navigating through the perf sched map output.
Link: http://lkml.kernel.org/n/tip-gmo3z75xp4xtyfaq097ns...@git.kernel.org Signed-off-by: Jiri Olsa <jo...@kernel.org> --- tools/perf/builtin-sched.c | 77 +++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 73 insertions(+), 4 deletions(-) diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index 9ef28973f198..b5361a1d20e1 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -11,6 +11,7 @@ #include "util/session.h" #include "util/tool.h" #include "util/cloexec.h" +#include "util/thread_map.h" #include "util/color.h" #include <subcmd/parse-options.h> @@ -123,10 +124,14 @@ struct trace_sched_handler { struct machine *machine); }; +#define COLOR_PIDS PERF_COLOR_BLUE + struct perf_sched_map { DECLARE_BITMAP(comp_cpus_mask, MAX_CPUS); int *comp_cpus; bool comp; + struct thread_map *color_pids; + const char *color_pids_str; }; struct perf_sched { @@ -1347,6 +1352,38 @@ static int process_sched_wakeup_event(struct perf_tool *tool, return 0; } +union map_priv { + void *ptr; + bool color; +}; + +static bool thread__has_color(struct thread *thread) +{ + union map_priv priv = { + .ptr = thread__priv(thread), + }; + + return priv.color; +} + +static struct thread* +map__findnew_thread(struct perf_sched *sched, struct machine *machine, pid_t pid, pid_t tid) +{ + struct thread *thread = machine__findnew_thread(machine, pid, tid); + union map_priv priv = { + .color = false, + }; + + if (!sched->map.color_pids || !thread || thread__priv(thread)) + return thread; + + if (thread_map__has(sched->map.color_pids, tid)) + priv.color = true; + + thread__set_priv(thread, priv.ptr); + return thread; +} + static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel, struct perf_sample *sample, struct machine *machine) { @@ -1386,7 +1423,7 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel, return -1; } - sched_in = machine__findnew_thread(machine, -1, next_pid); + sched_in = map__findnew_thread(sched, machine, -1, next_pid); if (sched_in == NULL) return -1; @@ -1422,6 +1459,11 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel, for (i = 0; i < cpus_nr; i++) { int cpu = sched->map.comp ? sched->map.comp_cpus[i] : i; + struct thread *curr_thread = sched->curr_thread[cpu]; + const char *pid_color = color; + + if (curr_thread && thread__has_color(curr_thread)) + pid_color = COLOR_PIDS; if (cpu != this_cpu) color_fprintf(stdout, color, " "); @@ -1429,14 +1471,19 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel, color_fprintf(stdout, color, "*"); if (sched->curr_thread[cpu]) - color_fprintf(stdout, color, "%2s ", sched->curr_thread[cpu]->shortname); + color_fprintf(stdout, pid_color, "%2s ", sched->curr_thread[cpu]->shortname); else color_fprintf(stdout, color, " "); } color_fprintf(stdout, color, " %12.6f secs ", (double)timestamp/1e9); if (new_shortname) { - color_fprintf(stdout, color, "%s => %s:%d", + const char *pid_color = color; + + if (thread__has_color(sched_in)) + pid_color = COLOR_PIDS; + + color_fprintf(stdout, pid_color, "%s => %s:%d", sched_in->shortname, thread__comm_str(sched_in), sched_in->tid); } @@ -1712,11 +1759,31 @@ static int setup_map_cpus(struct perf_sched *sched) return 0; } +static int setup_color_pids(struct perf_sched *sched) +{ + struct thread_map *map; + + if (!sched->map.color_pids_str) + return 0; + + map = thread_map__new_by_tid_str(sched->map.color_pids_str); + if (!map) { + pr_err("failed to get thread map from %s\n", sched->map.color_pids_str); + return -1; + } + + sched->map.color_pids = map; + return 0; +} + static int perf_sched__map(struct perf_sched *sched) { if (setup_map_cpus(sched)) return -1; + if (setup_color_pids(sched)) + return -1; + setup_pager(); if (perf_sched__read_events(sched)) return -1; @@ -1872,6 +1939,8 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused) const struct option map_options[] = { OPT_BOOLEAN(0, "compact", &sched.map.comp, "map output in compact mode"), + OPT_STRING(0, "color-pids", &sched.map.color_pids_str, "pids", + "highlight given pids in map"), OPT_END() }; const char * const latency_usage[] = { @@ -1935,7 +2004,7 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused) return perf_sched__lat(&sched); } else if (!strcmp(argv[0], "map")) { if (argc) { - argc = parse_options(argc, argv, map_options, replay_usage, 0); + argc = parse_options(argc, argv, map_options, map_usage, 0); if (argc) usage_with_options(map_usage, map_options); } -- 2.4.11
