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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This archive was generated by hypermail 2b29 : Sat Apr 07 2001 - 21:00:14 EST