Date: Tue, 20 Mar 2001 11:50:53 -0500 From: Dennis <dennis@etinc.com> To: =?iso-8859-1?Q?M=E5rten?= =?iso-8859-1?Q?_Wikstr=F6m?= <Marten.Wikstrom@framfab.se> Cc: "'freebsd-hackers@freebsd.org'" <freebsd-hackers@FreeBSD.ORG> Subject: RE: Routing latency Message-ID: <5.0.0.25.0.20010320114644.01e961c0@mail.etinc.com> In-Reply-To: <E6D22E487D45D411931B00508BCF93E75C0331@storeg001.framfab.s e>
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At 02:04 AM 03/20/2001, M=E5rten Wikstr=F6m wrote: >[snip] > > >triggers every second and steals too much cpu. So my > > question is, how can I > > >decrease this routing delay? > > Were you loading the interface, or just passing nominal > > streams? What pps > > did you pass through the box? Most likely the "delays" are > > only seen when > > the machine is close to capacity (the slow CPU you are using > > doesnt help). > >I sent 20000 packets/s, three UDP streams with 60, 200 and 1000 bytes sized >packets respectively. I also tried just one stream with 60 bytes packets= and >the same behaviour occured. 20k pps is probably beyond the capacity of a 200Mhz PPRO machine to forward= =20 on an ongoing basis (ie if other processes are running at the machine). the way the machine behaves over capacity is not as important as its=20 abiltiy to continue running. How it works during normal operations its what= =20 is important. Dennis To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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