Messages in this thread | | | Date | Mon, 18 Aug 2003 21:49:02 +0200 | From | Stefan Foerster <> | Subject | Re: Very bad interactivity with 2.6.0 and SCSI disks (aic7xxx) |
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* "Justin T. Gibbs" <gibbs@scsiguy.com> wrote: >> But as soon as I do a >> >> while true; do dd if=/dev/zero of=test bs=1024 count=1048576 ; rm test >> ; done >> >> on my SCSI disk, the system becomes completely unusuable after a few >> seconds. Everything is running at the speed of molasses, even screen >> redrawing, the music stops playing for some seconds, my mouse hangs >> and so on. > > It sounds like the system is not limiting the rate at which an I/O > hog can dirty pages, so this one process ends up consuming all of > your I/O bandwidth.
Well, this is not the desired behaviour, at least not for me. Any ideas what I could do to solve this problem? I sent an oprofile output to lkml, perhaps that helps?
I am more than willing to give every information needed to debug this problem, because this bad interactive behaviuor is really annoying.
Is there a slight possibility that this problem is not specific to 2.5/2.6, because I encounter similar problems on 2.4?
Ciao, Stefan -- Stefan Förster Public Key: 0xBBE2A9E9 FdI #192: Strong international Encryption - Triple-ROT13 (Carsten Lechte)
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