| To: | Matthias Schniedermeyer <ms@xxxxxxx> |
|---|---|
| Subject: | Re: High latencies writing to a memory mapped file |
| From: | Emmanuel Florac <eflorac@xxxxxxxxxxxxxx> |
| Date: | Tue, 27 Jul 2010 12:47:50 +0200 |
| Cc: | Shawn Bohrer <shawn.bohrer@xxxxxxxxx>, xfs@xxxxxxxxxxx |
| In-reply-to: | <20100727092452.GA23307@xxxxxxx> |
| Organization: | Intellique |
| References: | <20100722144706.GA2840@xxxxxxxxxxxxxxxxxxxxxxxxx> <20100727092452.GA23307@xxxxxxx> |
Le Tue, 27 Jul 2010 11:24:52 +0200
Matthias Schniedermeyer <ms@xxxxxxx> 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.
--
------------------------------------------------------------------------
Emmanuel Florac | Direction technique
| Intellique
| <eflorac@xxxxxxxxxxxxxx>
| +33 1 78 94 84 02
------------------------------------------------------------------------
|
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: High latencies writing to a memory mapped file, Matthias Schniedermeyer |
|---|---|
| Next by Date: | Re: High latencies writing to a memory mapped file, Matthias Schniedermeyer |
| Previous by Thread: | Re: High latencies writing to a memory mapped file, Matthias Schniedermeyer |
| Next by Thread: | Re: High latencies writing to a memory mapped file, Matthias Schniedermeyer |
| Indexes: | [Date] [Thread] [Top] [All Lists] |