Re: [PATCH] 2.6.0-test4 -- add context switch counters
From: William Lee Irwin III
Date: Wed Aug 27 2003 - 02:27:46 EST
On Wed, Aug 27, 2003 at 11:50:30AM +1000, Peter Chubb wrote:
> I'm actually intested in getting most of the rusage fields filled in
> properly, at least the ones that make sense for Linux.
Me too.
On Wed, Aug 27, 2003 at 11:50:30AM +1000, Peter Chubb wrote:
> Things to do are:
> -- Track maxrss and report it.
That's easy.
On Wed, Aug 27, 2003 at 11:50:30AM +1000, Peter Chubb wrote:
> -- Track and integrate rss.
> -- Fix the page fault accounting (currently some minor faults
> are counted as major faults)
Hmm, I don't remember this offhand. I thought the bigger issue was with
threads.
On Wed, Aug 27, 2003 at 11:50:30AM +1000, Peter Chubb wrote:
> -- add signal accounting
Sounds easy.
On Wed, Aug 27, 2003 at 11:50:30AM +1000, Peter Chubb wrote:
> Block I/O isn't that important -- it almost all goes through the page
> cache anyway, and it's a bit difficult to assign a particular I/O to a
> particular process. Likewise, message I.O isn't that important AFAIK.
Well, ignoring the background io issue and just ticking per-task counters
in the read/write syscalls sounds good enough to me.
On Wed, Aug 27, 2003 at 11:50:30AM +1000, Peter Chubb wrote:
> The stack, data and unshared data sizes aren't currently
> accounted for separately at all, so it'd be a bit difficult to track
> the integral of those numbers.
I've got some stuff to keep the derivatives of these going on the back
burner, and integrating isn't hard.
-- wli
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