Re: SCO: "thread creation is about a thousand times faster than onnative

From: Linus Torvalds (torvalds@transmeta.com)
Date: Wed Aug 23 2000 - 15:46:49 EST


On Wed, 23 Aug 2000, Andi Kleen wrote:

> On Wed, Aug 23, 2000 at 09:17:10PM +0100, Alan Cox wrote:
> > The kernel has fast lightweight threading. How you map user space threads and
> > co-routines onto this is really between the app and libs. In fact I'd argue
> > strongly that an app _must_ be able to provide its own strategy routine or
> > some kind of hints to the lib
>
> I would not call 8K/16K overhead "lightweight" treading.

Oh, and pray tell how much you expect a kernel thread to take?

The memory overhead is negligible. An app that thinks that 16kB/thread is
too much, should not be using kernel threads in the first place. You could
argue that it probably shouldn't be using threads at _all_.

                Linus

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