Messages in this thread | | | Date | Wed, 4 Apr 2001 13:57:40 +0200 (CEST) | From | Ingo Molnar <> | Subject | Re: a quest for a better scheduler |
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On Wed, 4 Apr 2001, Alan Cox wrote:
> The problem has always been - alternative scheduler, crappier > performance for 2 tasks running (which is most boxes). [...]
it's not only the 2-task case, but also less flexibility or lost semantics.
> Indeed. I'd love to see you beat tux entirely in userspace. It proves > the rest of the API for the kernel is right
well, until the cost of entry into the kernel is eliminated, this is not possible - unless there are performance bugs in TUX :-)
but yes, getting a userspace solution that gets 'close enough' in eg. SPECweb99 benchmarks (which is complex enough to be trusted as a generic performance metric) would be a nice thing to have. There are existing SIGIO based, multithreaded solutions (eg. phttpd), with varying success.
Ingo
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