From: Rik van Riel <riel@conectiva.com.br>
To: Zlatko Calusic <zlatko.calusic@iskon.hr>
Cc: Andrea Arcangeli <andrea@suse.de>, Jens Axboe <axboe@suse.de>,
Marcelo Tosatti <marcelo@conectiva.com.br>,
linux-mm@kvack.org, lkml <linux-kernel@vger.kernel.org>
Subject: Re: Zlatko's I/O slowdown status
Date: Fri, 2 Nov 2001 18:26:44 -0200 (BRST) [thread overview]
Message-ID: <Pine.LNX.4.33L.0111021825180.2963-100000@imladris.surriel.com> (raw)
In-Reply-To: <87g07xdj6x.fsf@atlas.iskon.hr>
On 2 Nov 2001, Zlatko Calusic wrote:
> It was write caching. Somehow disk was running with write cache turned
> off and I was getting abysmal write performance. Then I found hdparm
> -W0 /proc/ide/hd* in /etc/init.d/umountfs which is ran during shutdown
>
> I would advise users of Debian unstable to comment that part,
Why do you want Debian users to loose their data ? ;)
The 'hdparm -W0' is useful in getting the drive to flush
out the data to disk instead of having it linger around
in the drive cache.
regards,
Rik
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next prev parent reply other threads:[~2001-11-02 20:26 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-24 10:42 xmm2 - monitor Linux MM active/inactive lists graphically Zlatko Calusic
2001-10-24 14:26 ` Marcelo Tosatti
2001-10-25 0:25 ` Zlatko Calusic
2001-10-25 4:19 ` Linus Torvalds
2001-10-25 4:57 ` Linus Torvalds
2001-10-25 12:48 ` Zlatko Calusic
2001-10-25 16:31 ` Linus Torvalds
2001-10-25 17:33 ` Jens Axboe
2001-10-26 9:45 ` Zlatko Calusic
2001-10-26 10:08 ` Zlatko Calusic
2001-10-26 14:39 ` Jens Axboe
2001-10-26 14:57 ` Zlatko Calusic
2001-10-26 15:01 ` Jens Axboe
2001-10-26 16:04 ` Linus Torvalds
2001-10-26 16:57 ` Linus Torvalds
2001-10-26 17:19 ` Linus Torvalds
2001-10-28 17:30 ` Zlatko Calusic
2001-10-28 17:34 ` Linus Torvalds
2001-10-28 17:48 ` Alan Cox
2001-10-28 17:59 ` Linus Torvalds
2001-10-28 18:22 ` Alan Cox
2001-10-28 18:46 ` Linus Torvalds
2001-10-28 19:29 ` Alan Cox
2001-10-28 18:56 ` Andrew Morton
2001-10-30 8:56 ` Jens Axboe
2001-10-30 9:26 ` Zlatko Calusic
2001-10-28 19:13 ` Barry K. Nathan
2001-10-28 21:42 ` Jonathan Morton
2001-11-02 5:52 ` Zlatko's I/O slowdown status Andrea Arcangeli
2001-11-02 20:14 ` Zlatko Calusic
2001-11-02 20:26 ` Rik van Riel [this message]
2001-11-02 21:22 ` Zlatko Calusic
2001-11-02 20:57 ` Andrea Arcangeli
2001-11-02 23:23 ` Simon Kirby
2001-10-27 13:14 ` xmm2 - monitor Linux MM active/inactive lists graphically Giuliano Pochini
2001-10-28 5:05 ` Mike Fedyk
2001-10-25 9:07 ` Zlatko Calusic
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