[PATCH 14/25] perf timechart: Always try to print at least 15 tasks

From: Arnaldo Carvalho de Melo
Date: Mon Nov 25 2013 - 09:21:38 EST


From: Stanislav Fomichev <stfomichev@xxxxxxxxxxxxxx>

Always try to print at least 15 tasks no matter how long they run.

Signed-off-by: Stanislav Fomichev <stfomichev@xxxxxxxxxxxxxx>
Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1383323151-19810-2-git-send-email-stfomichev@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-timechart.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 41c9bde2fb67..bb21e57ff9bb 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -945,15 +945,17 @@ 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 (!process_filter && thresh && count < 15);

open_svg(filename, numcpus, count, first_time, last_time);

--
1.8.1.4

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