lkml.org 
[lkml]   [2005]   [Jan]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH]sched: Isochronous class v2 for unprivileged soft rt scheduling
From
Date
Con Kolivas <kernel@kolivas.org> writes:

> Jack O'Quin wrote:
>> Excellent. Judging by the DSP Load, your machine seems to run almost
>> twice as fast as my 1.5GHz Athlon (surprising). You might want to try
>
> Not really surprising; the 2Mb cache makes this a damn fine cpu, if
> not necessarily across the board :)

I wonder if most of the critical DSP cycle fits in the cache?

Does it degrade significantly with a compile running in the background?

> Full results and pretty pictures available here:
> http://ck.kolivas.org/patches/SCHED_ISO/iso2-benchmarks/

Outstanding.

How do you get rid of that checkerboard grey background in the graphs?

Looking at the graphs, your system has a substantial 4 to 6 msec delay
on approximately 40 second intervals, regardless of which scheduling
class or how many clients you run. I'm guessing this is a recurring
long code path in the kernel and not a scheduling artifact at all.
--
joq
-
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    [from the cache]
©2003-2011 Jasper Spaans