Great thanks ! - but these are kind of obivous.
Are there more ? :). Could I turn off / delay
kupdated and assume that when incore log buffers
are full, it would be automatically flushed into
disk without kupdated's help ? We have lots
of memory to spare and have turned on highmem IO.
Wendy
---------
----- Original Message -----
From: "Nathan Scott" <nathans@xxxxxxx>
To: "Wendy Cheng" <s_wendy_cheng@xxxxxxxxxxx>
Cc: "xfs mailing list" <linux-xfs@xxxxxxxxxxx>
Sent: Monday, June 02, 2003 7:07 PM
Subject: Re: xfs performance tuning
| On Mon, Jun 02, 2003 at 06:15:11PM -0400, Wendy Cheng wrote:
| > We're trying out XFS using SPECsfs benchmark and
| > could only get ~ half of the IOPS when compared
| > with EXT2. It might not be a fair comparison since EXT2
| > is not a journaling file system but would love to know
| > any tuning parameter to boost the number. Could someone
| > help out ? Thanks...
|
| I would suggest starting with the mkfs options "-l size=XXX" and
| "-i size=XXX" (log size and inode size). Increasing the number
| of incore log buffers you're using ("-o logbufs=XXX" mount option)
| might help you too.
|
| cheers.
|
| --
| Nathan
|
|