> On Tue, 2002-06-18 at 00:21, Andrew Rodland wrote:
> > On Mon, 17 Jun 2002 23:14:48 +0100
> > "James Stevenson" <mistral@stev.org> wrote:
> >
> > Something tried to wipe out all of the caches for some device, but
> > something else was using it at the time. For example, if you try to
> > run parted on something mounted (and bypass/confuse its mountedness
> > check) you'll see this. Were you doing anything like that?
>
> or run for example hdparm -tT device to do a (imho pretty useless)
> "benchmark" of io throughput.
>
> --
> André Tomt
> andre@tomt.net
>
the first half of hdparm -Tt is useful as a benchmark of how quick other
parts of the kernel are, though... changing the optimization level, or
the difference between vanilla and rmap, non-preempt and preempt, etc,
affects this a good bit. :)
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