| From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
|---|---|
| To: | Marco Colombo <pgsql(at)esiway(dot)net> |
| Cc: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>, Christophe <xof(at)thebuild(dot)com>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Maximum transaction rate |
| Date: | 2009-03-14 14:59:54 |
| Message-ID: | 1237042794.25832.0.camel@jd-laptop.pragmaticzealot.org |
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| Thread: | |
| Lists: | pgsql-general |
On Sat, 2009-03-14 at 05:25 +0100, Marco Colombo wrote:
> Scott Marlowe wrote:
> Also see:
> http://lkml.org/lkml/2008/2/26/41
> but it seems to me that all this discussion is under the assuption that
> disks have write-back caches.
> "The alternative is to disable the disk write cache." says it all.
If this applies to raid based cache as well then performance is going to
completely tank. For users of Linux + PostgreSQL using LVM.
Joshua D. Drake
>
> .TM.
>
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