Re: TCP socket buffer autotuning

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From: "H.K. Jerry Chu" <hkjerry.chu@xxxxxxxxx>
Date: Fri, 20 Oct 2006 19:37:46 -0700

> Yes now it hits the limit (942Mbps) after tcp_wmem[2] was increased to
> 40MB. I'm surprised it needs to be so big (B*D
> is only < 19MB).

You need "2 * (B*D)" to cover losses fully (to recover from a loss you
need to be able to queue a full window's worth during recovery), but
it seems you're not hitting losses so that's strange.
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