Re: [patch] lockless, scalable get_pid(), for_each_process()

Alan Cox (alan@lxorguk.ukuu.org.uk)
18 Sep 2002 18:54:44 +0100


On Wed, 2002-09-18 at 18:30, Linus Torvalds wrote:
>
> On Wed, 18 Sep 2002, Ingo Molnar wrote:
> >
> > it is a problem still. We can create/destroy 2 billion threads:
> >
> > venus:~> ./p3 -s 2000000 -t 10 -r 0 -T --sync-join
> > Runtime: 19.889182138 seconds
> >
> > in roughly 5 hours, on bog-standard 2-CPU x86 hardware.
>
> Again, you're talking about entirely theoretical numbers that have no
> relevance for real life.
>
> Sure, you can do that. But a real life box? Nope.

With a berzerk web script, with a malicious user ?

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