From 54874e3236b834064943c02a647823ab5d97be57 Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev Date: Fri, 1 Nov 2013 20:25:46 +0400 Subject: [PATCH] perf timechart: Add option to limit number of tasks Add -n option to specify min. number of tasks to print. Signed-off-by: Stanislav Fomichev Acked-by: Namhyung Kim Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1383323151-19810-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-timechart.txt | 4 ++++ tools/perf/builtin-timechart.c | 5 ++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/tools/perf/Documentation/perf-timechart.txt b/tools/perf/Documentation/perf-timechart.txt index 3ff8bd4f0b4d..4373144a43b4 100644 --- a/tools/perf/Documentation/perf-timechart.txt +++ b/tools/perf/Documentation/perf-timechart.txt @@ -54,6 +54,10 @@ $ perf timechart Written 10.2 seconds of trace to output.svg. +-n:: +--proc-num:: + Print task info for at least given number of tasks. + SEE ALSO -------- linkperf:perf-record[1] diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index bb21e57ff9bb..c352be418f98 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -41,6 +41,7 @@ #define SUPPORT_OLD_POWER_EVENTS 1 #define PWR_EVENT_EXIT -1 +static int proc_num = 15; static unsigned int numcpus; static u64 min_freq; /* Lowest CPU frequency seen */ @@ -955,7 +956,7 @@ static void write_svg_file(const char *filename) do { count = determine_display_tasks(thresh); thresh /= 10; - } while (!process_filter && thresh && count < 15); + } while (!process_filter && thresh && count < proc_num); open_svg(filename, numcpus, count, first_time, last_time); @@ -1102,6 +1103,8 @@ int cmd_timechart(int argc, const char **argv, parse_process), OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", "Look for files with symbols relative to this directory"), + OPT_INTEGER('n', "proc-num", &proc_num, + "min. number of tasks to print"), OPT_END() }; const char * const timechart_usage[] = { -- 2.20.1