Messages in this thread | | | Date | Mon, 24 Feb 2003 13:45:48 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: [patch] procfs/procps threading performance speedup, 2.5.62 |
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On Mon, 24 Feb 2003, Albert D. Cahalan wrote:
> Sorting is not default because of the memory requirements and because > there have been many kernel bugs that cause ps to hang when it hits a > particular process. Sorting may mean that ps hangs or is killed before > producing anything.
in fact there was an unconditional qsort() done after scanning all tasks, until i pointed it out to Alex. It never caused any problems, and sorting never showed up as a source of overhead in the profiler, so i'm not sure why you insist on sorting so much.
if procps hangs then that's a bug in procps. I'm not quite sure what you mean by 'it hits a particular process'.
Ingo
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