Re: [BENCH] Problems with IO throughput and fairness with 2.4.10 and 2.4.9-ac15

Gerold Jury (
Fri, 28 Sep 2001 10:51:20 +0200

I have tried 2.4.9-xfs against 2.4.10-xfs with dbench.
The machine has 384 MB ram.

The throughput is roughly the same for both with dbench 2.
dbench 32 runs fine on 2.4.9-xfs but does not finish on 2.4.10-xfs.
dbench 24 will finish on 2.4.10 but it takes a very very long time.
All dbench processes are stuck in D state after 10 seconds.

I am not sure if it is the xfs part, the VM or both.

Can you give the dbench 32 a try ?


On Thursday 27 September 2001 14:46, Robert Cohen wrote:
> Given the recent flurry of changes in the Linux kernel VM subsystems I
> decided to do a bit of benchmarking.
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