lkml.org 
[lkml]   [2005]   [Jan]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: High resolution timers and BH processing on -RT
From
Date
On Fri, 2005-01-28 at 05:43 +0100, Ingo Molnar wrote:
> *
> is this due to algorithmic/PIT-programming overhead, or due to the noise
> introduced by other, non-hard-RT timers? I'd guess the later from the
> looks of it, but did your test introduce such noise (via networking and
> application workloads?).
>

Right, it's due to noise by non-RT timers, which I enforced by adding
networking and applications.

This adds random timer expires and admittedly the PIT reprogramming
overhead is adding portions of that noise.

tglx


-
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: 2005-03-22 14:09    [W:0.673 / U:0.444 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site