| To: | Eric Sandeen <sandeen@xxxxxxxxxxx> |
|---|---|
| Subject: | Re: XFS filesystem performance drop in kernels 2.6.16+ |
| From: | Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx> |
| Date: | Fri, 10 Nov 2006 12:59:59 +0100 (MET) |
| Cc: | "Igor A. Valcov" <viaprog@xxxxxxxxx>, linux-kernel <linux-kernel@xxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx |
| In-reply-to: | <4553F3C6.2030807@xxxxxxxxxxx> |
| References: | <bde600590611090930g3ab97aq3c76d7bca4ec267f@xxxxxxxxxxxxxx> <4553F3C6.2030807@xxxxxxxxxxx> |
| Sender: | xfs-bounce@xxxxxxxxxxx |
>> I also noticed that I/O barriers were introduced in v2.6.16 and >> thought they may be the cause, but mounting the file system with >> 'nobarrier' doesn't seem to affect the performance in any way. > > > did this happen to be a remount with nobarrier, or a fresh mount? For the barrier stuff, see http://lkml.org/lkml/2006/5/19/33 -`J' -- |
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