> William Lee Irwin III wrote:
On Thu, May 03, 2007 at 09:42:51AM +0300, Al Boldi wrote:
> sched_rr_get_interval(0, &ts);
> printf("pid %d, prio %3d, interval of %d nsec\n", getpid(),
> getpriority(PRIO_PROCESS, 0), ts.tv_nsec);
Oh dear. What are you trying to figure out from the task's timeslice?
That's not even meaningful in cfs.
On Thu, May 03, 2007 at 09:42:51AM +0300, Al Boldi wrote:
> start = last = stamp();
> while(1) {
> cur = stamp();
> delta = cur-last;
> if (delta > thresh_ticks) {
> act = last - start;
> printf("pid %d, prio %3d, out for %4llu ms, ran for
> %4llu ms, load %3llu%\n"
> , getpid(), getpriority(PRIO_PROCESS, 0), delta/1000,
> act/1000,(act*100)/(cur-start));
> start = cur = stamp();
> }
> last = cur;
> }
>
> return 0;
> }
This is looking for scheduling latencies, which are necessarily O(tasks).
This is not the way to do it.
-- wli
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
