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On 8/15/06, M. Edward (Ed) Borasky <znmeb / cesmail.net> wrote:
>
> Francis Cianfrocca wrote:
> > Depends on the Unix. Solaris threads (not LWPs) are light as a feather.
> > Linux 2.6 threads are almost as heavy as processes. Linux 2.4 threads
> are
> > almost unusable.
> Almost unusable? How are they worse than "almost as heavy as processes?"
>
> :)
>
>

The scheduler was not nearly as scalable in 2.4 as it is now, based on my
experiences. Try to spin five hundred threads on a 2.4 kernel and you won't
be doing much besides thrashing them around. Even Windows can do more than
that (a lot more, actually).

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