[2.6] system is very slow during disk access

[Michael Buesch <fsdeveloper@yahoo.de>]

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Hi.

I have massive problems with linux-2.6.0-test2.
When some process writes something to disk, it's very hard
to go on working with the system.

Some test-szenario:
$ dd if=/dev/zero of=./test.file

While dd is running, xmms skips playing every now and then
and the mouse is near to be unusable. The Mouse-cursor
behaves some kind of very lazy and some times it jumps
from one point on the display to another.
When I stop disk-access, it works again quite fine.

Would be cool, if you could give me some point to start
for tracking this down.

Please CC me, as I'm not subscribed to linux-ide. Thanks.
- -- 
Regards Michael Buesch  [ http://www.8ung.at/tuxsoft ]
Penguin on this machine:  Linux 2.6.0-test2 - i386

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