Messages in this thread | | | Date | Tue, 12 Oct 2004 11:17:40 +0200 | From | Ingo Molnar <> | Subject | Re: [patch] voluntary-preempt-2.6.9-rc3-mm3-T3 |
| |
* Lee Revell <rlrevell@joe-job.com> wrote:
> Just to recap, these are the three problem areas that still produce > latencies over 500 usec on my machine. > > journal_clean_checkpoint_list
you might want to send this trace to Andrew too - the primary master of ext3 latency-breaking.
> rt_garbage_collect
this one is still nasty and needs revisiting.
> vga console > > I have found that the latter does not require switching back and forth > to X; anything that produces a lot of console output can trigger 500 > usec latencies.
the vga console one we got rid of at a certain stage and it now resurfaced. The issue was doing VGA-text-RAM copies/memsets under the vga_lock. Maybe there were changes in vgacon recently that moved some of those back under the lock?
Ingo - 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/
| |