Date: Thu, 10 Nov 2005 07:48:14 -0500 From: Mike Jakubik <mikej@rogers.com> To: Robert Watson <rwatson@FreeBSD.org> Cc: freebsd-performance@freebsd.org, Arkadi Shishlov <arkadi@mebius.lv> Subject: Re: Poor Samba throughput on 6.0 Message-ID: <4373418E.1080907@rogers.com> In-Reply-To: <20051110090429.J33260@fledge.watson.org> 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>
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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.
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