Messages in this thread | | | From | Frans Pop <> | Subject | Re: [PATCH for testing] Re: Decreasing stime running confuses top | Date | Fri, 5 Oct 2007 17:07:48 +0200 |
| |
On Friday 05 October 2007, Chuck Ebbert wrote: > procfs: Don't read runtime twice when computing task's stime > > Current code reads p->se.sum_exec_runtime twice and goes through > multiple type conversions to calculate stime. Read it once and > skip some of the conversions. > > Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
This second patch is a major improvement. But both for kontact and amarok I still see stime decreasing occasionally. Sometimes even still quite frequently like in this series:
Oct 05 17:00:42 698 178 Oct 05 17:00:43 700 177 Oct 05 17:00:44 700 177 Oct 05 17:00:45 700 177 Oct 05 17:00:46 700 178 Oct 05 17:00:47 700 178 Oct 05 17:00:48 700 177 Oct 05 17:00:49 700 177 Oct 05 17:00:50 700 178 Oct 05 17:00:51 700 178 Oct 05 17:00:52 700 179 Oct 05 17:00:53 698 180 Oct 05 17:00:54 700 179 Oct 05 17:00:55 700 179 Oct 05 17:00:56 700 179 Oct 05 17:00:57 700 179 Oct 05 17:00:58 700 180 Oct 05 17:00:59 700 179
This was after 6 minutes of steady increases. Should we try a debug patch that shows the raw data behind the calculations?
I'll give the first patch a try next. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |