Re: patch: ll_rw_blk fixes

From: Stephen C. Tweedie (sct@redhat.com)
Date: Mon Feb 07 2000 - 06:58:27 EST


Hi,

On Mon, 07 Feb 2000 11:18:48 +0100, Serge Robyns
<serge.robyns@advalvas.be> said:

> Those are the one I've in my mind. I did only the track of the reads
> & writes done by ll_rw_blk and updated the current running proc's
> data. That data was than also made available to the proces accounting
> functions.

> The only real problem I'm facing, is that I had to extend the procfs
> proces data (/proc/<pid>/stat) with two addtional entries. And this
> could break some code, who using it, althoug by appending them it
> seems that top was still functioning!

psutils will probably survive this, although it wouldn't be hard to add
a /proc/*/iostat if adding it to */stat proves a problem.

> If we could also add request counts (or cache hits) it would be really
> nice.

Not too hard.

--Stephen

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