Messages in this thread | | | Date | Wed, 15 Oct 2003 18:16:02 +0200 | From | Stephan von Krawczynski <> | Subject | Re: incoming packet latency in 2.4.[18-20] |
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On Wed, 15 Oct 2003 11:45:52 -0400 Chris Friesen <cfriesen@nortelnetworks.com> wrote:
> > There is an issue with incoming packet latency in the kernels mentioned. > > It seems that if you send in a burst of messages, the amount of time it > takes to wake the listening process is dependent on the size of the > message burst. 2.4.18-2.4.20 all show this behaviour, 2.6 doesn't. > > Some numbers for a udp message size of 2 bytes: > > 1 packet, average latency 12 usecs > 10 packets, average latency 66 usecs > 100 packets, average latency 477 usecs > > Is this a known issue? Is there an easy way to fix this, or is it > something inherent in the 2.4 architecture?
Can you verify these numbers with 2.4.22 and 2.4.23-pre7 ?
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