Date: Mon, 29 Sep 2008 21:10:29 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: "Arno J. Klaassen" <arno@heho.snv.jussieu.fr> Cc: pyunyh@gmail.com, stable@freebsd.org, net@freebsd.org Subject: Re: 7.1-PRERELEASE : bad network performance (nfe0) Message-ID: <alpine.BSF.1.10.0809292109040.24341@fledge.watson.org> In-Reply-To: <wpy71bavmf.fsf@heho.snv.jussieu.fr> References: <wptzc1gu9v.fsf@heho.snv.jussieu.fr> <20080929043134.GD54819@cdnetworks.co.kr> <wpy71bavmf.fsf@heho.snv.jussieu.fr>
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On Mon, 29 Sep 2008, Arno J. Klaassen wrote: > However, the "request/respones" tests are awfull for my notebook (test > repeated on the notebook for the sake of conviction) : Is it possible to rerun these tests with a 7.0 kernel of the same general configuration? That would help us determine if it's a regression between 7.0 and 7.1, or perhaps a more general issue between 6.x and 7.x. I wouldn't reject a hardware, driver, or general stack issue at this point as things are still fairly unclear. If it's definitely between 7.0 and 7.1 that the problem arises, trying a series of kernels spaced at, say, one month intervals in that period would be quite helpful in narrowing down the source. Thanks, Robert N M Watson Computer Laboratory University of Cambridge > > TCP_RR > Trans. > Rate > per sec > > 6-stable-x86 9801.58 > 7-stable-x64 137.61 > 7-stable-x64 89.35 > 7-stable-x64 102.29 > > TCP_CRR > Trans. > Rate > per sec > > 6-stable-x86 4520.98 > 7-stable-x64 7.00 > 7-stable-x64 8.10 > 7-stable-x64 18.49 > > > UDP_RR > Trans. > Rate > per sec > > 6-stable-x86 9473.20 > 7-stable-x64 9.60 > 7-stable-x64 0.90 > 7-stable-x64 0.10 > > > I can send you complete results if wanted. > >> Other possible cause of issue could be link speed/duplex mismatch >> or excessive MAC control frames(e.g. pause frames). Does nfe(4) >> agree on resolved speed/duplex with link partner? > > > yes (1000baseTX <full-duplex>) > >> If they all agree on resolved speed/duplex, would you check number >> of pause frames sent/received from link partner? Even though MCP65 >> supports hardware MAC statistics for pause frames nfe(4) has no >> support code yet so you may have to resort to managed switch that >> can show Tx/Rx statistics of each port. > > aargh; I do have a Netgear GS724TS around where I can connect it to. > This thing should be manageable, but give me some time to > find out how .... > > Thanx, Arno > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" >
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