From: Jens Axboe <jens.axboe@oracle.com>
To: "Benjamin S." <sbenni@gmx.de>
Cc: Robert Hancock <hancockrwd@gmail.com>,
Jeff Garzik <jgarzik@pobox.com>,
linux-ide@vger.kernel.org, "Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: bad performance with SSD since kernel version 2.6.32
Date: Tue, 23 Feb 2010 07:22:18 +0100 [thread overview]
Message-ID: <20100223062218.GH1025@kernel.dk> (raw)
In-Reply-To: <20100222212528.13775145@pluto-lenny.milky.way>
On Mon, Feb 22 2010, Benjamin S. wrote:
> On Mon, 22 Feb 2010 20:05:22 +0100
> Jens Axboe <jens.axboe@oracle.com> wrote:
>
> > On Mon, Feb 22 2010, Benjamin S. wrote:
> > >
> > > Without that patch my SSD (Super Talent Ultradrive GX MLC 64GB)
> > > reaches about 200MB/s sequentiell read. After applying the patch it
> > > reaches only 70MB/s.
> >
> > That's not good. Can you send me the dmesg snippet that includes the
> > drive detection?
>
> [ 0.819456] libata version 3.00 loaded.
[snip]
OK, thanks. I'll revert the commit for 2.6.33.
--
Jens Axboe
next prev parent reply other threads:[~2010-02-23 6:22 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-20 13:28 bad performance with SSD since kernel version 2.6.32 Benjamin S.
2010-02-20 18:35 ` Robert Hancock
2010-02-21 1:26 ` Benjamin S.
[not found] ` <51f3faa71002210922i542c37f0j9e0e4a84d0977f90@mail.gmail.com>
[not found] ` <20100221225544.5a9ded51@pluto-lenny.milky.way>
[not found] ` <51f3faa71002211400u2177660ei1c0dc3d9306b146e@mail.gmail.com>
2010-02-22 13:18 ` Benjamin S.
2010-02-22 14:41 ` Robert Hancock
2010-02-22 19:05 ` Jens Axboe
2010-02-22 20:25 ` Benjamin S.
2010-02-23 6:22 ` Jens Axboe [this message]
2010-02-22 21:49 ` Mark Lord
2010-02-22 23:22 ` Robert Hancock
2010-02-23 6:21 ` Jens Axboe
2010-02-24 15:09 ` Mark Lord
2010-02-24 15:34 ` Jens Axboe
2010-02-24 15:48 ` Mark Lord
2010-02-24 19:05 ` Jens Axboe
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