Date: Fri, 30 Nov 2001 13:46:51 -0800 (PST) From: <dillon@FreeBSD.org> To: alexander.haderer@charite.de, dillon@FreeBSD.org, freebsd-bugs@FreeBSD.org Subject: Re: misc/32141: NFS V3/tcp server: low read performance Message-ID: <200111302146.fAULkpE57803@freefall.freebsd.org>
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Synopsis: NFS V3/tcp server: low read performance State-Changed-From-To: open->closed State-Changed-By: dillon State-Changed-When: Fri Nov 30 13:43:20 PST 2001 State-Changed-Why: This plus the conversation on freebsd-hackers has led to the discovery of a bug in the transmit burst code for newreno. I have just comitted (to both -current and -stable) a fix to disable this code. In my tests, NFS TCP mounts on a 100BaseT full duplex network went from 80K/sec to 7.9MB/sec with this fix. If you also turn on nfsiod on the client (nfsiod -n 4 on the client) performance increases from 7.9MB/sec to 12MB/sec (which is a fully saturated 100BaseT full duplex link). http://www.FreeBSD.org/cgi/query-pr.cgi?pr=32141 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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