Re: 2.6.4 : 100% CPU use on EIDE disk operarion, VIA chipset

[Andreas Hartmann]

Mikhail Ramendik wrote:
> Hello,
>
> Andreas Hartmann wrote:
>
> > > It turned out that on disk-intensive operation, the "system" CPU usage
> > > skyrockets. With a mere "cp" of a large file to the same direstory
> > > (tested with ext3fs and FAT32 file systems), it is 100% practically all
> > > of the time !
> > But you're right, 2.6.4 is slower than 2.4.25. See the thread "Very poor 
> > performance with 2.6.4" here in the list.
>
> As recommended there, I have tried 2.6.5-rc3-mm4.
>
> No change. Still 100% CPU usage; the performance seems teh same.

Yes. But it's curious:
Take a tar-file, e.g. tar the compiled 2.6 kernel directory. Than, untar 
it again - the machine behaves total normaly. And the 2.6-kernel is about 
23% faster than the 2.4-kernel.


> Yours, Mikhail Ramendik
>
> P.S. Sorry for making all comments into answers to your letter. I just
> don't want to break the thread. 

No problem - it's easier to read with comment directly in the text.


Regards,
Andreas Hartmann
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