Date: Thu, 10 Nov 2005 10:32:05 -0500 From: Nick Evans <nevans@talkpoint.com> To: Mike Jakubik <mikej@rogers.com> Cc: freebsd-performance@freebsd.org, Robert Watson <rwatson@FreeBSD.org>, Arkadi Shishlov <arkadi@mebius.lv> Subject: Re: Poor Samba throughput on 6.0 Message-ID: <20051110103205.78d63c87@pleiades.nextvenue.com> In-Reply-To: <4373418E.1080907@rogers.com> References: <70e8236f0511050457s5ce6d8batf805fbc9edd91360@mail.gmail.com> <20051109060931.GD5188@obiwan.tataz.chchile.org> <70e8236f0511090517g29b3f887x1b97ef5dec04548@mail.gmail.com> <70e8236f0511090627p24c90400ke39bdb0da222a323@mail.gmail.com> <4372184C.10809@mebius.lv> <43727712.4020500@rogers.com> <20051110090429.J33260@fledge.watson.org> <4373418E.1080907@rogers.com>
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On Thu, 10 Nov 2005 07:48:14 -0500 Mike Jakubik <mikej@rogers.com> wrote: > Robert Watson wrote: > > There are a number of TCP related configuration frobs on FreeBSD. It > > would be quite interesting to know how modifying each of the following > > settings affects Samba performance: > > > > net.inet.tcp.delayed_ack > > net.inet.tcp.sack.enable > > net.inet.tcp.inflight.enable > > > > There has been recent evidence that the inflight bandwidth calculation > > is having problems generating stable performance at high bandwidth and > > low latency, so I might try that one first. > I get about ~3MB/s extra, and a 16MB/s peak, with inflight disabled, > when downloading from the FreeBSD server to WindowsXP. An improvement, > but still not a desirable result. The other variables do not seem to > make much of a difference. > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to > "freebsd-performance-unsubscribe@freebsd.org" What's the round trip time between the two devices? You might want to look at adjusting socket buffer sizes on Windows and FreeBSD per your bandwidth delay product. Nick
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