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SubjectRe: [patch] procfs/procps threading performance speedup, 2.5.62

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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