Re: Poor Samba throughput on 6.0

From: Nick Evans (nevans_at_talkpoint.com)
Date: 11/10/05

  • Next message: Joao Barros: "Re: Poor Samba throughput on 6.0" 
    Date: Thu, 10 Nov 2005 10:32:05 -0500
To: Mike Jakubik <mikej@rogers.com>

    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.
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    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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  • Next message: Joao Barros: "Re: Poor Samba throughput on 6.0"

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