lkml.org 
[lkml]   [2008]   [Jan]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [Announce] Development release 0.1 of the LatencyTOP tool
From
Date

On Fri, 2008-01-18 at 09:36 -0800, Arjan van de Ven wrote:
> The Intel Open Source Technology Center is pleased to announce the
> release of version 0.1 of LatencyTOP, a tool for developers to visualize
> system latencies.
>
> http://www.latencytop.org
>
> Slow servers, Skipping audio, Jerky video --everyone knows the symptoms
> of latency. But to know what's really going on in the system, what's causing
> the latency, and how to fix it... those are difficult questions without
> good answers right now.
[cut]

Just curious...

My biggest latency problems (as observed by me, the user) happen when a
program needs memory, or launching a new program, and the kernel begins
forces dirty memory to disk. This results in an unholy seek storm of
mixed writes (flushing, maybe a little swap) and reads (new program
loading). Streaming audio/video almost always starts freezing up during
this as well.

I don't suppose LatencyTop would help track anything down in that case,
would it?
--
Zan Lynx <zlynx@acm.org>
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2008-01-18 20:05    [from the cache]
©2003-2011 Jasper Spaans