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perf sched timehist: Cleanup idle_max_cpu handling 

It treats the idle_max_cpu little bit confusingly IMHO.  Let's make it
more straight forward.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20161206034010.6499-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2016-12-06 12:40:05 +09:00 committed by Arnaldo Carvalho de Melo
parent 5d92d96a94
commit b336352b41
1 changed files with 4 additions and 5 deletions
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9
tools/perf/builtin-sched.c
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@ -2010,7 +2010,7 @@ static int init_idle_threads(int ncpu)
if (!idle_threads)
return -ENOMEM;
idle_max_cpu = ncpu - 1;
idle_max_cpu = ncpu;
/* allocate the actual thread struct if needed */
for (i = 0; i < ncpu; ++i) {
@ -2031,7 +2031,7 @@ static void free_idle_threads(void)
if (idle_threads == NULL)
return;
for (i = 0; i <= idle_max_cpu; ++i) {
for (i = 0; i < idle_max_cpu; ++i) {
if ((idle_threads[i]))
thread__delete(idle_threads[i]);
}
@ -2054,8 +2054,7 @@ static struct thread *get_idle_thread(int cpu)
return NULL;
idle_threads = (struct thread **) p;
i = idle_max_cpu ? idle_max_cpu + 1 : 0;
for (; i < j; ++i)
for (i = idle_max_cpu; i < j; ++i)
idle_threads[i] = NULL;
idle_max_cpu = j;
@ -2495,7 +2494,7 @@ static void timehist_print_summary(struct perf_sched *sched,
return;
printf("\nIdle stats:\n");
for (i = 0; i <= idle_max_cpu; ++i) {
for (i = 0; i < idle_max_cpu; ++i) {
t = idle_threads[i];
if (!t)
continue;