lkml.org 
[lkml]   [2003]   [Aug]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC] Re: Blender profiling-1 O16.2int
On Tue, 19 Aug 2003, Con Kolivas wrote:

> > Is there a way to figure out when a process is spinning on a wait and
>
> That's the trick isn't it? No there isn't or else I'd fix it in a jiffy. If
> someone can think of a way I'd love to know.

Have you considered instrumenting waits/locks ? I had to do that for a
schedular/locks/events (not Linux based), by extending the structures
to include current ownership and waiters... At a problem point, you'd
then have to use something like sysreq to trigger a scan of the relevant
data areas. I had to cause an error and do a postmortem via paper dump
:(

--
Rick Nelson
> : Any porters out there should feel happier knowing that DEC is shipping
> : me an AlphaPC that I intend to try getting linux running on: this will
> : definitely help flush out some of the most flagrant unportable stuff.
> : The Alpha is much more different from the i386 than the 68k stuff is, so
> : it's likely to get most of the stuff fixed.
>
> It's posts like this that almost convince us non-believers that there
> really is a god.
-- Anthony Lovell, to Linus's remarks about porting
-
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 13:47    [W:0.090 / U:0.468 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site