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RE: [lwip-users] httpd slow response


From: Simon Goldschmidt
Subject: RE: [lwip-users] httpd slow response
Date: Tue, 28 Apr 2009 08:04:56 +0200


> This is a bit funny in an odd way because I had to disable Nagle to make
> performance better with Raw API.  For me, performance meant send a command
> down with data and get a short response back ASAP.

That's perfectly correct and not odd at all: the nagle algorithm tries to 
improve the overall network load by not sending too many small packets. What 
you need is the opposite: low latency. It's perfectly normal on every TCP/IP 
platform to disable the nagle algorithm for such applications. E.g. remote 
shells would not work well with nagle turned on as that would introduce a 
minimum delay of 200ms for every keystroke.

Simon
-- 
Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: 
http://www.gmx.net/de/go/multimessenger01




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