Messages in this thread | | | Date | Mon, 30 Oct 2000 10:52:08 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: 2.2.18Pre Lan Performance Rocks! |
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On Mon, 30 Oct 2000, Jeff V. Merkey wrote:
> [...] All protection has to go away in all LAN paths for this to > happen, and user space apps set to ring 0. [...]
i found that this is not a requirement for good network scalability. We do not do a syscall for every packet, so the cost evens out. Sure, it does not hurt to not eat ~1 microsecond per system-call, but it causes no overhead or scalability limit otherwise. In the TUX webserver we have user-space modules doing context-switch-less webserving, and it scales quite well, and is generic.
Ingo
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