Horton

Re: File system performance and pg_xlog

Marko Kreen <marko@l-t.ee>

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From: Marko Kreen <marko@l-t.ee>
To: mlw <markw@mohawksoft.com>
Cc: Hackers List <pgsql-hackers@postgresql.org>
Date: 2001-05-05T20:00:47Z
Lists: pgsql-hackers 
On Sat, May 05, 2001 at 01:09:38PM -0400, mlw wrote:
> A small debate started with bad performance on ReiserFS. I pondered the likely
> advantages to raw device access. It also occured to me that the FAT file system
> is about as close to a managed raw device as one could get. So I did some
> tests:

> /sdb1 is either an ext2 or FAT file system used as "pg_xlog" with a symlink.

One little thought: does mounting ext2 with 'noatime' makes any
difference?  AFAIK fat does not have concept of atime, so then
it would be more fair?  Just a thought.

-- 
marko