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From: | address@hidden |
Subject: | Re: [lwip-users] Significant overhead periodically during TCP receive transfers |
Date: | Tue, 07 Oct 2008 18:11:15 +0200 |
User-agent: | Thunderbird 2.0.0.17 (Macintosh/20080914) |
Kieran Mansley wrote:
Thank you for any feedback on this.I don't know of any timers that have that periodicity in lwIP.
None.
The first thing I would do is to check whether this is a real delay in your device or a simple TCP retransmission delay (i.e. the first response has a bad checksum or something like that and the PC has to wait for the device to retransmit).It might be useful to get a packet capture from just before the poor performance that we could look at in ethereal - that might give a clue about why the performance is poor.
I strongly suspect the latter. Simon
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