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

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.ruSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 0a8eb275
...@@ -54,6 +54,10 @@ $ perf timechart ...@@ -54,6 +54,10 @@ $ perf timechart
Written 10.2 seconds of trace to output.svg. Written 10.2 seconds of trace to output.svg.
-n::
--proc-num::
Print task info for at least given number of tasks.
SEE ALSO SEE ALSO
-------- --------
linkperf:perf-record[1] linkperf:perf-record[1]
...@@ -41,6 +41,7 @@ ...@@ -41,6 +41,7 @@
#define SUPPORT_OLD_POWER_EVENTS 1 #define SUPPORT_OLD_POWER_EVENTS 1
#define PWR_EVENT_EXIT -1 #define PWR_EVENT_EXIT -1
static int proc_num = 15;
static unsigned int numcpus; static unsigned int numcpus;
static u64 min_freq; /* Lowest CPU frequency seen */ static u64 min_freq; /* Lowest CPU frequency seen */
...@@ -955,7 +956,7 @@ static void write_svg_file(const char *filename) ...@@ -955,7 +956,7 @@ static void write_svg_file(const char *filename)
do { do {
count = determine_display_tasks(thresh); count = determine_display_tasks(thresh);
thresh /= 10; thresh /= 10;
} while (!process_filter && thresh && count < 15); } while (!process_filter && thresh && count < proc_num);
open_svg(filename, numcpus, count, first_time, last_time); open_svg(filename, numcpus, count, first_time, last_time);
...@@ -1102,6 +1103,8 @@ int cmd_timechart(int argc, const char **argv, ...@@ -1102,6 +1103,8 @@ int cmd_timechart(int argc, const char **argv,
parse_process), parse_process),
OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
"Look for files with symbols relative to this 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() OPT_END()
}; };
const char * const timechart_usage[] = { const char * const timechart_usage[] = {
......
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