From: Mike Fedyk <mfedyk@matchmail.com>
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: Martin Knoblauch <knobi@knobisoft.de>, linux-kernel@vger.kernel.org
Subject: Re: RAID-0 read perf. decrease after 2.4.20
Date: Thu, 18 Dec 2003 11:13:18 -0800 [thread overview]
Message-ID: <20031218191318.GC6438@matchmail.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0312181140540.4547-100000@logos.cnet>
On Thu, Dec 18, 2003 at 11:41:11AM -0200, Marcelo Tosatti wrote:
> On Tue, 16 Dec 2003, Martin Knoblauch wrote:
> > Just some feedback:
> >
> > echo 511 > /proc/sys/vm/max-readahead
> >
> > brings back the read performance of my 30 disks on 4 controller
> > LVM/RAID0.
>
> Great.
Maybe a new default is in order?
next prev parent reply other threads:[~2003-12-18 19:13 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-16 12:51 RAID-0 read perf. decrease after 2.4.20 Martin Knoblauch
2003-12-18 13:41 ` Marcelo Tosatti
2003-12-18 14:37 ` Martin Knoblauch
2004-07-04 23:28 ` Mikael Johansson
2003-12-18 19:13 ` Mike Fedyk [this message]
2003-12-18 19:17 ` Marcelo Tosatti
-- strict thread matches above, loose matches on Subject: below --
2003-11-25 9:41 Martin Knoblauch
2003-11-24 10:05 Martin Knoblauch
2003-11-25 5:01 ` Joshua Schmidlkofer
2003-11-20 16:45 Mikael Johansson
2003-11-21 13:47 ` Marcelo Tosatti
2003-11-21 13:47 ` Marcelo Tosatti
2003-11-21 19:56 ` Mikael Johansson
2003-12-08 12:47 ` Marcelo Tosatti
2003-12-08 12:47 ` Marcelo Tosatti
2003-12-08 13:11 ` Marc-Christian Petersen
2003-12-08 13:11 ` Marc-Christian Petersen
2003-12-08 13:21 ` Marcelo Tosatti
2003-12-08 13:21 ` Marcelo Tosatti
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