Re: 2.2.18Pre Lan Performance Rocks!

From: Ingo Molnar (mingo@elte.hu)
Date: Mon Oct 30 2000 - 04:52:08 EST


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

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Tue Oct 31 2000 - 21:00:25 EST