Date: Thu, 26 Oct 2000 10:19:12 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: John Hay <jhay@icomtek.csir.co.za>, jwd@FreeBSD.ORG (John W. De Boskey), freebsd-current@FreeBSD.ORG Subject: Re: ftp vs. nfs install times Message-ID: <14840.15453.967708.384265@grasshopper.cs.duke.edu> In-Reply-To: <35785.972544257@critter> References: <200010260637.e9Q6bbK53295@zibbi.icomtek.csir.co.za> <35785.972544257@critter>
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Poul-Henning Kamp writes: > In message <200010260637.e9Q6bbK53295@zibbi.icomtek.csir.co.za>, John Hay write > s: > > >> Try disabling newreno in both ends: > >> > >> sysctl -w net.inet.tcp.newreno=0 > >> > >> On my laptop with Wavelan cards this increases TCP throughput by a > >> factor of 5. > > > >Yes, that makes a HUGE difference. I only did it on the current box. > >Internat is still running 4.x and don't have it. I think it made more > >than a factor of 5 difference here. :-) > > I sent packet traces to yan some time back, but have not heard from him > since. I wonder if we should disable newrene for now... That would be a shame. It makes a huge difference when shovling bits across my DSL line to my -stable laptop. Running netperf from a -current alpha with newreno, I consistantly see 650-700Kb/s. From a -stable i386 without newreno, I see variable results from 300-500Kb/sec with large stutters, so to speak, where there is no traffic at all for one second (or at least I don't see any packets in systat -tcp 1). I hope this problem can be fixed -- I was actually hoping that newreno could be MFC'ed. Drew ------------------------------------------------------------------------------ Andrew Gallatin, Sr Systems Programmer http://www.cs.duke.edu/~gallatin Duke University Email: gallatin@cs.duke.edu Department of Computer Science Phone: (919) 660-6590 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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