Re: 2.4.8-pre1 and dbench -20% throughput

Zlatko Calusic
2001-07-30T19:39:22Z

"Randy.Dunlap" <rddunlap@osdlab.org> writes:

> 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?
>

http://linux.inet.hr/
--
Zlatko