High latencies writing to a memory mapped file

[Matthias Schniedermeyer]

On 27.07.2010 12:47, Emmanuel Florac wrote:
> Le Tue, 27 Jul 2010 11:24:52 +0200
> Matthias Schniedermeyer <ms at citd.de> écrivait:
> 
> > In case anybody has an idea what i could do to identify and/or
> > isolate the root-cause, i'm open for suggestions.
> > 
> 
> I'd thought that the io scheduler is the culprit. I've generally found
> that the default CFQ scheduler (default) is terrible for file servers.

I have 'deadline'ed the server, if that is the culprit then i will 
"know" in about a month. (As i don't know how to force the problem i can 
only wait for the problem not to happen. :-| )



Bis denn

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