From: Neil Brown <neilb@suse.de>
To: Stephan van Hienen <raid@a2000.nu>
Cc: "Raz Ben-Jehuda(caro)" <raziebe@gmail.com>,
Linux RAID Mailing List <linux-raid@vger.kernel.org>
Subject: Re: raid 5 read performance
Date: Mon, 23 Oct 2006 14:15:42 +1000 [thread overview]
Message-ID: <17724.16878.840243.479385@cse.unsw.edu.au> (raw)
In-Reply-To: message from Stephan van Hienen on Saturday October 21
On Saturday October 21, raid@a2000.nu wrote:
> On Sun, 21 May 2006, Neil Brown wrote:
>
> > Please read
> >
> > http://www.spinics.net/lists/raid/msg11838.html
> >
> > and ask if you have further questions.
>
> Neil,
>
> what is the current status on the slow read performance with 2.6 ?
>
You mean by-passing the cache to avoid extra copy and synchronisation
overheads?
I have the patches. I tried them once and couldn't measure any
speedup (I didn't try very hard) and put them aside think "I have to
look into this properly" and haven't got back to it yet.
Thanks for the reminder. Hope to do some performance measurements
soon. I'll make sure I include these patches when I do.
NeilBrown
next prev parent reply other threads:[~2006-10-23 4:15 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-21 9:10 raid 5 read performance Raz Ben-Jehuda(caro)
2006-05-21 9:17 ` Neil Brown
2006-05-21 17:19 ` Dan Williams
2006-05-21 22:38 ` Neil Brown
2006-10-20 22:16 ` Stephan van Hienen
2006-10-23 4:15 ` Neil Brown [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-06-09 15:50 Raz Ben-Jehuda(caro)
2006-06-09 22:59 ` Neil Brown
2006-08-05 17:31 ` Dan Williams
[not found] ` <5d96567b0608051456y795d1930la3d469174f221821@mail.gmail.com>
2006-08-05 22:38 ` Dan Williams
2009-09-10 20:07 Raid 5 Read performance Koti
2009-09-10 20:17 ` Majed B.
[not found] ` <918883.43112.qm@web94815.mail.in2.yahoo.com>
2009-09-11 18:22 ` Majed B.
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