> ---------Case 1---------
>
> > > Notice how 2.1.114 spends much more time in the kernel (6 times more
> > > than 2.0.33). Overall it is 3 times slower.
>
> Thats the dcache I suspect. Its probably a win for most uses however.
> You can use the kernel profiling to find out. Also remember to compare
> non SMP kernels with non SMP kernels
Hm. How can dcache be slower and better at the same time? :)
I don't know, but deletion is much much slower in 2.1 and you don't
even need benchmark to see that.
Both kernels are UP, no doubt about that.
>
> > > If I'm right, this implies that 2.1.114 is very bad for proxy and/or
> > > news servers, who both operate on lots of files, creating/deleting
> > > them at fast rate.
>
> Proxies spend most of their time looking up files. I wouldnt expect that
> to be this worst case you report
Well, you're right, but looking at "ls -al" benchmark, I'm not that
convinced that 2.1 is better. OK, my "benchmarks" are too stupid to
prove anything, but...
>
> > > Anybody care to shed some light on this?
>
> Can you see if 2.1.115ac1 is any better on this benchmark on your box
>
I'll check, as soon as I sit physically at my machine (tomorrow).
I'll try to make some better test suite, too.
Regards,
-- Posted by Zlatko Calusic E-mail: <Zlatko.Calusic@CARNet.hr> --------------------------------------------------------------------- FOR SALE: Iraqi rifle. Never fired. Dropped once.- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.altern.org/andrebalsa/doc/lkml-faq.html