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[lwip-devel] [task #7040] Work on tcp_enqueue


From: Bill Auerbach
Subject: [lwip-devel] [task #7040] Work on tcp_enqueue
Date: Wed, 28 Jan 2009 22:34:48 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5

Follow-up Comment #7, task #7040 (project lwip):

Can we revisit this?  I don't think this has to do with Nagle. Or it also
occurs without Nagle.  On large transfers (RAW_API) I see it not send a full
payload about 1 in 40 packets.  True, this isn't a huge problem.  I would
expect if sending e.g. 300kB that all but the last packet would have a full
payload.

Do we know why it sends a partial packet?  In my tcp_sent, if I have more
than MTU bytes to send, should I wait for tcp_sndbuf to have MTU free?  Is
this what was meant by solving it at the application level?

Thanks,
Bill

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