From: Giuliano Pochini <pochini@denise.shiny.it>
To: SodaPop <soda@xirr.com>
Cc: Pavel Machek <pavel@suse.cz>, linux-kernel@vger.kernel.org
Subject: Re: Oscillations in disk write compaction, poor interactive performance
Date: Wed, 18 Apr 2001 20:40:02 +0200 [thread overview]
Message-ID: <3ADDDF82.DB37117B@denise.shiny.it> (raw)
In-Reply-To: <Pine.LNX.4.30.0104170950350.24360-100000@xirr.com>
> The problem is that at the low point in the cycle, the machine is
> unusable. It is utterly unresponsive until the writes complete, which can
> take a very long time (in the case of the ppc machine, several minutes!)
> Anything that does disk I/O will block for a long time - having 'ls' take
> two minutes is not a good thing.
Can you chack how much cpu time do dbflush and kswapd get ?
> 2.2 does not exhibit this behaviour.
2.2 is much worse IMO.
Bye.
prev parent reply other threads:[~2001-04-19 19:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-12 21:34 Oscillations in disk write compaction, poor interactive performance SodaPop
2001-04-16 15:29 ` Pavel Machek
2001-04-17 14:55 ` SodaPop
2001-04-18 18:40 ` Giuliano Pochini [this message]
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