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* SATA Harddisk speed drop of 100 MB/s
@ 2007-06-20 22:48 Carlo Wood
  2007-06-20 23:06 ` Jeff Garzik
  0 siblings, 1 reply; 31+ messages in thread
From: Carlo Wood @ 2007-06-20 22:48 UTC (permalink / raw)
  To: linux-kernel

hdparm -tT gives over 160 MB/s for my tripple 10k rpm Raptor RAID5
on 2.6.18, as expected.

In 2.6.22-rc5 this dropped to only 60 MB/s !

Is this a known issue?

I also measured it with bonnie; I get 108 MB/s reading speed on
2.6.18 and only 68 MB/s on 2.6.22-rc5.

-- 
Carlo Wood <carlo@alinoe.com>

^ permalink raw reply	[flat|nested] 31+ messages in thread

end of thread, other threads:[~2007-07-05 22:12 UTC | newest]

Thread overview: 31+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-06-20 22:48 SATA Harddisk speed drop of 100 MB/s Carlo Wood
2007-06-20 23:06 ` Jeff Garzik
2007-06-21  3:36   ` Arjan van de Ven
2007-06-22 16:21     ` Carlo Wood
2007-06-22 21:17       ` Henrique de Moraes Holschuh
2007-06-22 21:27         ` Carlo Wood
2007-06-23  1:31           ` Henrique de Moraes Holschuh
2007-06-23  2:59             ` Carlo Wood
2007-06-23 17:29               ` Andrew Morton
2007-06-23 22:21                 ` Jeff Garzik
2007-06-25 15:18               ` Lennart Sorensen
2007-06-25 16:04                 ` Carlo Wood
2007-06-22 21:44   ` SATA RAID5 " Carlo Wood
2007-06-23  3:54     ` Carlo Wood
2007-06-23  6:22       ` Tejun Heo
2007-06-22 21:48   ` Carlo Wood
2007-06-23  7:03     ` Jeff Garzik
2007-06-23  7:54       ` Tejun Heo
2007-06-23 12:53       ` Carlo Wood
2007-06-23 17:30         ` Bartlomiej Zolnierkiewicz
2007-06-23 22:43         ` Jeff Garzik
2007-06-24 11:58           ` Michael Tokarev
2007-06-24 12:59             ` Dr. David Alan Gilbert
2007-06-24 14:21               ` Justin Piszcz
2007-06-24 15:52                 ` Michael Tokarev
2007-06-24 16:59                   ` Justin Piszcz
2007-06-24 22:07                     ` Carlo Wood
2007-06-24 23:46                       ` Mark Lord
2007-06-25  0:23                       ` Patrick Mau
2007-06-24 15:48               ` Michael Tokarev
2007-07-05 22:12             ` Phillip Susi

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