Date: Mon, 18 Oct 2004 14:31:08 -0700 From: Sean McNeil <sean@mcneil.com> To: John-Mark Gurney <gurney_j@resnet.uoregon.edu> Cc: freebsd-current@freebsd.org Subject: Re: re0 fix that works with polling Message-ID: <1098135068.2861.6.camel@server.mcneil.com> In-Reply-To: <20041018011235.GB22681@funkthat.com> References: <1097896460.1123.2.camel@server.mcneil.com> <20041018011235.GB22681@funkthat.com>
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--=-2aIBLILhoCiGtiVInRj0 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hi John-Marc, On Sun, 2004-10-17 at 18:12, John-Mark Gurney wrote: > John-Mark Gurney wrote this message on Sun, Oct 17, 2004 at 16:28 -0700: > > I'll do some tests shortly to see about these issues... >=20 > Ok, I played around w/ rwatson's netsend program, and I was able to > send 1316 byte payload udp packets at about 28kpps w/o problems.. I > was not able to confirm that no packets were loss, BUT, netstat did > show very close to 28kpps received... At 28kpps, it's far exceeds > your problem of 15Mbps, it is about 38megbytes/sec.. I looked at and read netsend/netreceive. Is this what you are using?=20 If so, how do you know that there is no packet loss? netreceive does no checking to make sure of anything. It is just a sink that throws away the packets. You need to look at the actual data that is being delivered. You will find that 20% of those packets that are suppose to have been sent are just thrown away without any error indication of any sort. netstat -i will show no errors yet the packets are gone if you look for them on the other side. So netsend is telling you it sends them at 38megbytes/sec but out the wire the driver is only sending 80% of the packets it should. Cheers, Sean --=-2aIBLILhoCiGtiVInRj0 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQBBdDYcyQsGN30uGE4RAiKBAJ0eX1imTu0R2KiuWpNqb/wEB72imwCePL7X l7vvKBsxl88yFJtn8USy56I= =+FRW -----END PGP SIGNATURE----- --=-2aIBLILhoCiGtiVInRj0--
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