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Re: [lwip-users] question about 4*MSS
From: |
Kieran Mansley |
Subject: |
Re: [lwip-users] question about 4*MSS |
Date: |
Mon, 27 Apr 2009 10:14:52 +0100 |
On Mon, 2009-04-27 at 17:10 +0800, yueyue papa wrote:
> i also meet the performance slow probelm. The logical is very simple:
> TCP send and receive. (similar as HTTP. )
>
> I always see the ACK and delay ACK discussed, is ther default suggest
> paramters.
The solution is simple: increase the ratio between TCP_SND_BUF and
TCP_MSS. At the moment you only have two MSS in each TCP_SND_BUF. Try
increasing this to four, either by making TCP_SND_BUF bigger, or TCP_MSS
smaller.
Kieran