| To: | Emmanuel Florac <eflorac@xxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: XFS: Abysmal write performance because of excessive seeking (allocation groups to blame?) |
| From: | Stefan Ring <stefanrin@xxxxxxxxx> |
| Date: | Mon, 9 Apr 2012 14:53:14 +0200 |
| Cc: | stan@xxxxxxxxxxxxxxxxx, Linux fs XFS <xfs@xxxxxxxxxxx> |
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>> So 150 MB/sec seems to be the >> best these disks can do, > > Definitely NOT right. I mean I've got routinely 600 MB/s from 8 7.2K > drives RAID-6 arrays. Unless cache is off, which RAID-6 isn't obviously > thought for. In this case it was a 2-disk RAID 1, so it’s 150 MB/s per disk. Seems quite right to me. |
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