Re: 2.4.8-pre1 and dbench -20% throughput

Randy.Dunlap
2001-07-30T15:17:02Z

Theodore Tso wrote:
>
> On Sun, Jul 29, 2001 at 11:41:50AM +1000, Andrew Morton wrote:
>
> > It would be very useful to have a standardised and very carefully
> > chosen set of tests which we could use for evaluating fs and kernel
> > performance. I'm not aware of anything suitable, really. It would
> > have to be a whole bunch of datapoints sprinkled throughout a
> > multidimesional space. That's what we do at present, but it's ad-hoc.
>
> All the gripes about dbench/netbench aside, one good thing about them
> is that they hit the filesystem with a large number of operations in
> parallel, which is what a fileserver under heavy load will see.
> Benchmarks like Andrew and Bonnie tend to have a much more serialized
> pattern of filesystem access.

Is iozone (using threads) any better at this?
We are currently using iozone.

And where can I find Zlatko's xmm program that Mike mentioned?

Thanks,
--
~Randy