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Subject: Re: [PATCH 2.5] speedup kallsyms_lookup
From: Robert Love <rml@tech9.net>
To: Hugh Dickins <hugh@veritas.com>
Cc: William Lee Irwin III <wli@holomorphy.com>, Andi Kleen <ak@suse.de>,
       Daniel Ritz <daniel.ritz@gmx.ch>, linux-kernel@vger.kernel.org,
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On Fri, 2003-01-10 at 11:34, Hugh Dickins wrote:

> Indeed!  I think that was Andi volunteering :-}
> But we should let rml defend his wchan.

Well, of course I want to keep it - but I am biased :)

I think its a simple export that gives us a neat feature.  Additionally,
from the procps perspective, it saves us from having to parse System.map
for each process.  In fact, it means we do not need a System.map at all
for any procps functionality.

I guess Linus at least mildly liked it too, since he merged it.

But if its such a performance crippling item perhaps it does need to be
removed (or somehow restricted).

I do agree that, if possible, wchan should be kept simple... so, is
everyone else for the removal of /proc/pid/wchan ? :-(

	Robert Love

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