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Commit 54874e32 authored by Stanislav Fomichev's avatar Stanislav Fomichev Committed by Arnaldo Carvalho de Melo
Browse files

perf timechart: Add option to limit number of tasks 



Add -n option to specify min. number of tasks to print.

Signed-off-by: default avatarStanislav Fomichev <stfomichev@yandex-team.ru>
Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383323151-19810-3-git-send-email-stfomichev@yandex-team.ru


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 0a8eb275

tools/perf/Documentation/perf-timechart.txt

+4 −0
Original line number Diff line number Diff line
@@ -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]

tools/perf/builtin-timechart.c

+4 −1
Original line number Diff line number Diff line
@@ -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[] = {