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Switch on schedstat support where needed. #16

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Merged
sofar merged 1 commit into from
Sep 14, 2016
Merged

Switch on schedstat support where needed. #16

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6 changes: 6 additions & 0 deletions src/bootchart.c
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Original file line number Diff line number Diff line change
Expand Up @@ -307,6 +307,7 @@ int main(int argc, char *argv[]) {
_cleanup_free_ char *build = NULL;
_cleanup_fclose_ FILE *of = NULL;
_cleanup_close_ int sysfd = -1;
int schfd;
struct ps_struct *ps_first;
double graph_start;
double log_start;
Expand Down Expand Up @@ -351,6 +352,11 @@ int main(int argc, char *argv[]) {
rlim.rlim_max = 4096;
(void) setrlimit(RLIMIT_NOFILE, &rlim);

schfd = open("/proc/sys/kernel/sched_schedstats", O_WRONLY);
if (schfd >= 0)
write(schfd, "1\n", 2);
close(schfd);
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@keszybz keszybz Sep 2, 2016

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Please don't hate me ;)

Can you move the close underneath the if too?

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@sofar sofar Sep 2, 2016

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I'd hate it if you hadn't said that, cuz it's obviously not nice like this. :)


/* start with empty ps LL */
ps_first = new0(struct ps_struct, 1);
if (!ps_first) {
Expand Down