redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

perf timechart: Fix max number of cpus 

Currently numcpus is determined in pid_put_sample which is only
called on sched_switch/sched_wakeup sample processing.

On a machine with a lot cpus I often saw the last cpu missing.

Check for (max) numcpus on every event happening and in the
beginning. -> fixes the issue for me.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: lenb@kernel.org
LKML-Reference: <1298842606-55712-6-git-send-email-trenn@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Thomas Renninger 2011-02-27 22:36:46 +01:00 committed by Ingo Molnar
parent e853072055
commit 54b08f5f90
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tools/perf/builtin-timechart.c
View File

@ -264,9 +264,6 @@ pid_put_sample(int pid, int type, unsigned int cpu, u64 start, u64 end)
c->start_time = start;
if (p->start_time == 0 || p->start_time > start)
p->start_time = start;
if (cpu > numcpus)
numcpus = cpu;
}
#define MAX_CPUS 4096
@ -511,6 +508,9 @@ static int process_sample_event(event_t *event __used,
if (!event_str)
return 0;
if (sample->cpu > numcpus)
numcpus = sample->cpu;
if (strcmp(event_str, "power:cpu_idle") == 0) {
struct power_processor_entry *ppe = (void *)te;
if (ppe->state == (u32)PWR_EVENT_EXIT)