Unresponsive machine during disk activity - RedHat 9
From: Mike Blatchley (mblatch_at_yahoo.com)
To: email@example.com Date: Tue, 22 Jul 2003 22:49:08 -0700 (PDT)
Since switching from RedHat 8 to RedHat 9, my machine
becomes very sluggish if one process is doing a lot of
disk access. Has anything changed such that IDE disk
access takes higher priority now? I expect an
application relying on disk access to perform worse,
but this sucks the life out of other applications (or
even moving/minimizing windows). All updates as of
June 28 have been applied.
I know it is not swap file related, because I don't
even use a swap file as of a couple weeks ago. On my
machine, RH 9 (or kernel) was using the swap file when
I don't believe it should be. I had 2 gnome-terminal
windows open and was doing a tar backup to a SCSI tape
drive; after a couple hours 70MB of swap space was
used and no other apps had been run. I did a 'swapoff
-a' and everything was cleared out of the swap files.
On RH 8, I rarely saw more than 1-2MB in swap.
System is an IBM ThinkPad A21p, 850MHz Mobile P-III,
512MB memory. Kernel 2.4.20-18.9.
If anyone has any suggestions on anything that I may
have configured incorrectly that could have brought
this on, I'd appreciate it. I've run RH Linux from
the early 2.0/3.0 days and never seen problems like
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