Re: disk diagnostics

["Pieter Dumon" <pieter.dumon@xxxxxxxxx>]

> Could this be an interrupt problem?  I'd be interested
> to see the output from "vmstat -i" before and after such
> an rm or tar command or similar.  Also, some lines from
> "iostat 5" during the rm/tar might be useful.

I'll post that tomorrow or so

On 7/27/06, Joerg Sonnenberger <joerg@xxxxxxxxxxxxxxxxx> wrote:
> That's exactly what I expected. It needs almost no processing in
> userland, a little bit more in the kernel to push the IO through the
> various layer and most time waiting for the ATA controller.

Ok, but is the cause of this extremely long waiting time a hardware
malfunction/misconfiguration ?

> When you repeat the same process with softdep, it should be a lot faster, since
> it can write out many requests ordered. It would be even faster with a
> proper disk scheduler, but that's (still) a dream.

I'll try, but it will be with the latest preview (1.7), not with the
1.5.4 as I updated my kernel sources.