Re: [ADMIN] Raw devices vs. Filesystems - Mailing list pgsql-performance

From Steve Atkins
Subject Re: [ADMIN] Raw devices vs. Filesystems
Date
Msg-id 20040407162946.GA7271@gp.word-to-the-wise.com
Whole thread Raw
In response to Re: [ADMIN] Raw devices vs. Filesystems  (Josh Berkus <josh@agliodbs.com>)
List pgsql-performance
On Wed, Apr 07, 2004 at 09:09:16AM -0700, Josh Berkus wrote:

> If your intention in this test is to show the superiority of raw devices, let
> me give you a reality check: barring some major corporate backing getting
> involved, we can't possibly implement our own PG-FS for database support.  We
> already have a TODO list which is far too long for our developer pool, and
> implementing a custom FS either takes a large team (OCFS) or several years of
> development (Reiser).

Is there any documentation as to what guarantees PostgreSQL requires
from the filesystem, or what posix semantics can be relaxed?

Cheers,
  Steve

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