Always try to print at least 15 tasks no matter how long they run. Add -n option to specify desired number of tasks to print.
Signed-off-by: Stanislav Fomichev <[email protected]> --- tools/perf/builtin-timechart.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index c2e02319347a..d965f26308ed 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -40,6 +40,8 @@ #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 */ @@ -944,15 +946,17 @@ static void write_svg_file(const char *filename) { u64 i; int count; + int thresh = TIME_THRESH; numcpus++; - count = determine_display_tasks(TIME_THRESH); - - /* We'd like to show at least 15 tasks; be less picky if we have fewer */ - if (count < 15) - count = determine_display_tasks(TIME_THRESH / 10); + /* We'd like to show at least proc_num tasks; + * be less picky if we have fewer */ + do { + count = determine_display_tasks(thresh); + thresh /= 10; + } while (thresh && count < proc_num); open_svg(filename, numcpus, count, first_time, last_time); @@ -963,9 +967,11 @@ static void write_svg_file(const char *filename) svg_cpu_box(i, max_freq, turbo_frequency); draw_cpu_usage(); - draw_process_bars(); + if (proc_num) + draw_process_bars(); draw_c_p_states(); - draw_wakeups(); + if (proc_num) + draw_wakeups(); svg_close(); } @@ -1094,6 +1100,8 @@ 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', "number", &proc_num, + "min. number of tasks to print"), OPT_END() }; const char * const timechart_usage[] = { -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
