lkml.org 
[lkml]   [2005]   [Mar]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch] Real-Time Preemption, -RT-2.6.12-rc1-V0.7.41-10

* Lee Revell <rlrevell@joe-job.com> wrote:

> Running for several days with PREEMPT_DESKTOP, on the Athlon XP the
> worst latency I am seeing is ~150 usecs! But on the C3 its about 4ms:

could you run a bit with tracing disabled (in the .config) on the C3?
(but wakeup timing still enabled) It may very well be tracing overhead
that makes those latencies that high. Also, we'd thus have some hard
data on how much overhead tracing is in such a situation, on that CPU.

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/

\
 
 \ /
  Last update: 2005-04-06 13:30    [W:0.105 / U:1.172 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site