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    SubjectRe: [omega-g1:11110] Re: [PATCH] net: configurable sysctl parameter "net.core.tcp_lowat" for sk_stream_min_wspace()
    From: "Jun.Kondo" <>
    Date: Fri, 09 Sep 2011 10:33:58 +0900

    > - In normal situation, acquire large default transmission
    > buffer value, and ensure high throughput from the
    > beginning of tcp connection

    You should never do this. You should use the default buffer sizes and
    as a result the kernel's TCP stack automatically adjusts the send and
    receive buffers in response to the link characteristics.

    When you set explicit buffer sizes, this turns off the TCP stack's
    auto-tuning mechanism.

    Every argument made in support of your proposed feature is based upon
    a false premise of one kind of another, and this is yet another example
    of this.

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      Last update: 2011-09-09 04:21    [W:0.018 / U:53.340 seconds]
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