Re: all syscalls initially taking 4usec on a P4? Re: nonblocking UDPv4 recvfrom() taking 4usec @ 3GHz?
From: Evgeniy Polyakov <hidden>
Date: 2007-02-20 17:18:26
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On Tue, Feb 20, 2007 at 08:11:20PM +0300, Evgeniy Polyakov (johnpol@2ka.mipt.ru) wrote:
I would try it today - but it is a bit late in Moscow already - and there are some things to complete yet. So, tomorrow I will create a patch and run it, but I seriously doubt that there is _that_ high per-recvfrom latency.
As of now - syscall which just copies 50 bytes from /dev/zero eats about 400-450 nanosecods per run (core duo 3.7 ghz). -- Evgeniy Polyakov