Re: Logging disk accesses.

Albert D. Cahalan (linker@nightshade.ml.org)
Tue, 2 Jun 1998 14:32:34 -0400 (EDT)


On Tue, 2 Jun 1998, Rogier Wolff wrote:

> linker@nightshade.ml.org wrote:
> >
> >
> > Wow!
> >
> > It would be astonishing to have this collect access patters for a few
> > weeks. Then have a process that finds sets of blocks that are often read
> > togeather, then finaly a defragger that takes block orders.
>
> I wrote the kernel support, Someone go ahead and write the other
> pieces. This is what it is intended to do. (The logger is easy:
> tail -10000f /proc/blkdev_log >> /var/log/blkdev_log
> )
> Roger.

Will this not cause a feedback loop? Or is this only on blocks read?

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