Messages in this thread | | | Date | Sat, 23 Jun 2007 18:21:49 -0400 | From | Jeff Garzik <> | Subject | Re: SATA Harddisk speed drop of 100 MB/s |
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Andrew Morton wrote: > Please see http://bugzilla.kernel.org/show_bug.cgi?id=8636 > > In that report a pretty large slowdown with CFQ has been identified. > Jens has plunked a patch in there (Comment #50) and then ran away on > vacation. > > If someone can test that patch and demonstrate its goodness, I'll > queue it up, thanks.
This has unfortunately split up into two threads. I identified the root cause of the slowdown as NCQ in the thread "Re: SATA RAID5 speed drop of 100 MB/s" on LKML.
Jeff
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