33 lines
1.0 KiB
Diff
33 lines
1.0 KiB
Diff
From: Thomas Renninger <trenn@suse.de>
|
|
Subject: Fix huge and wronge C-state drawings due to uninitialized start/end timestamps
|
|
Patch-Mainline: not yet
|
|
References: none
|
|
|
|
Signed-off-by: Thomas Renninger <trenn@suse.de>
|
|
|
|
---
|
|
tools/perf/builtin-timechart.c | 9 ++++++++-
|
|
1 file changed, 8 insertions(+), 1 deletion(-)
|
|
|
|
Index: linux-2.6.37-master/tools/perf/builtin-timechart.c
|
|
===================================================================
|
|
--- linux-2.6.37-master.orig/tools/perf/builtin-timechart.c
|
|
+++ linux-2.6.37-master/tools/perf/builtin-timechart.c
|
|
@@ -654,8 +654,15 @@ static void draw_c_p_states(void)
|
|
* two pass drawing so that the P state bars are on top of the C state blocks
|
|
*/
|
|
while (pwr) {
|
|
- if (pwr->type == CSTATE)
|
|
+ if (pwr->type == CSTATE) {
|
|
+ /* If the first event is an _end event, start timestamp is zero
|
|
+ -> ignore these */
|
|
+ if (pwr->start_time == 0 || pwr->end_time == 0) {
|
|
+ pwr = pwr->next;
|
|
+ continue;
|
|
+ }
|
|
svg_cstate(pwr->cpu, pwr->start_time, pwr->end_time, pwr->state);
|
|
+ }
|
|
pwr = pwr->next;
|
|
}
|
|
|