From: Matthias Andree <matthias.andree@stud.uni-dortmund.de>
To: linux-kernel@vger.kernel.org, reiserfs-list@namesys.com
Subject: Re: [PATCH] 2.4.10 improved reiserfs a lot, but could still be better
Date: Mon, 24 Sep 2001 17:32:10 +0200 [thread overview]
Message-ID: <20010924173210.A7630@emma1.emma.line.org> (raw)
In-Reply-To: <B0005839269@gollum.logi.net.au>
In-Reply-To: <B0005839269@gollum.logi.net.au>
On Mon, 24 Sep 2001, Beau Kuiper wrote:
> Also, the performace problems seem to be very dependant on the hardware being
> used. 5400rpm drives get hurt a lot, while 7200 rpm drives seem to handle it
> better. Decent write caching on IDE devices (like the 2meg buffer on the IBM)
> can completely hide this issue.
Decent write caching on IDE devices can eat your whole file system.
Turn it off (I have no idea of internals, but I presume it'll still be a
write-through cache, so reading back will still be served from the
buffer). Do hdparm -W0 /dev/hd[a-h].
One might consider adding TCQ to the IDE driver. FreeBSD already has it,
and IBM drives talk it.
next prev parent reply other threads:[~2001-09-24 15:32 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-24 14:09 Beau Kuiper
2001-09-24 14:46 ` [reiserfs-list] " Chris Mason
2001-09-24 15:32 ` Matthias Andree [this message]
2001-09-24 15:45 ` Alan Cox
2001-09-24 15:47 ` Matthias Andree
2001-09-24 16:08 ` Alan Cox
2001-09-24 16:08 ` [reiserfs-list] " Chris Dukes
2001-09-24 16:54 ` Matthias Andree
2001-09-24 16:15 ` Nicholas Knight
2001-09-24 16:40 ` [reiserfs-list] " Lehmann
2001-09-24 16:53 ` Matthias Andree
2001-09-24 16:57 ` [reiserfs-list] " Lehmann
2001-09-25 14:04 ` bill davidsen
2001-09-25 17:39 ` bill davidsen
2001-09-24 20:05 ` Nicholas Knight
2001-09-25 0:11 ` Matthias Andree
2001-09-25 4:49 ` Nicholas Knight
2001-09-25 6:00 ` Beau Kuiper
2001-09-25 6:17 ` Nicholas Knight
2001-09-25 10:44 ` Matthias Andree
2001-09-25 11:01 ` ben-lists
2001-09-25 10:42 ` Matthias Andree
2001-09-25 11:07 ` Nicholas Knight
2001-09-25 14:47 ` Alex Bligh - linux-kernel
2001-09-25 15:13 ` Matthias Andree
2001-09-25 15:23 ` John Alvord
2001-09-25 22:41 ` bill davidsen
2001-09-25 12:54 ` Jorge Nerín
2001-09-25 13:17 ` Matthias Andree
2001-09-25 13:06 ` [reiserfs-list] " Chris Mason
2001-09-24 21:58 Dieter Nützel
2001-09-25 0:19 ` Matthias Andree
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