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Date: Mon, 24 Feb 2003 13:41:08 +0100 (CET)
From: Ingo Molnar <mingo@elte.hu>
Reply-To: Ingo Molnar <mingo@elte.hu>
To: procps-list@redhat.com
Cc: "Albert D. Cahalan" <acahalan@cs.uml.edu>,
       Linus Torvalds <torvalds@transmeta.com>, <linux-kernel@vger.kernel.org>,
       <alexl@redhat.com>, Alexander Viro <viro@math.psu.edu>
Subject: Re: [patch] procfs/procps threading performance speedup, 2.5.62
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On Mon, 24 Feb 2003, Albert D. Cahalan wrote:

> It's fine to mix up thread order, but bad to interleave the threads of
> unrelated processes.

this is very simple to do, and does not necessiate thread-directories.  
There's a PID and TGid field in /proc/PID/status. Just link the task to
the TGid-task, and you have instant access to all threads per TGid. In the
'groupped output' case you have to scan & access all threads anyway. Ok?

(but this is way offtopic. The changes we posted address the normal case
of process-listing. (no -m option.) If there are tons of threads around
then any discussed variant of 'ps -m' will be slow.)

	Ingo

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