Messages in this thread | | | Date | Mon, 18 Feb 2002 14:47:38 -0800 | From | Andrew Morton <> | Subject | Re: kupdated using all CPU |
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john wrote: > > [Mon, Feb 18, 2002 at 02:13:06PM -0800] akpm@zip.com.au wrote: > + john wrote: > + > > + > hi, > + > ive searched all over and found many references to this problem, but > + > never found an actual solution. the problem is that during heavy > + > disk I/O, kupdated will periodically take up ALL the cpu. > + > + I've seen a couple of reports of this, nothing to indicate that it's > + a common problem? > + > + In the other reports, it was related to extremely low disk throughput. > + What does `hdparm -t /dev/hda' say? > > root@doom:~# hdparm -t /dev/hda > > /dev/hda: > Timing buffered disk reads: 64 MB in 25.60 seconds = 2.50 MB/sec
ugh. OK, I'll see if I cen reproduce this - there's no reason why disk suckiness should cause high CPU load. But you need to pay some attention to your IDE settings in kernel config, and possibly tuning.
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