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   comp.protocols.tcp-ip      TCP and IP network protocols.      14,669 messages   

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   Message 12,935 of 14,669   
   Martijn Lievaart to arya   
   Re: Differences in PUSH flag implementat   
   22 Jun 09 08:38:48   
   
   e8c685ee   
   From: m@rtij.nl.invlalid   
      
   On Sun, 21 Jun 2009 18:01:24 -0700, arya wrote:   
      
   > I've run an application on three different OS with different results.   
   > The application is supposed to a file to an embedded device, waiting for   
   > an 'OK' response from the embedded devices between each line of the   
   > embedded code that it transfers. This is done over a telnet connection.   
   >   
   > When I measured the time between successive telnet packets sent by the   
   > PC, I measured 500ms (Windows 2003 Server), 300 ms (Vista) and 1ms   
   > (Linux 2.6). When I captured the TCP traffic, the delay seems to be at   
   > the PC end. The embedded device responds with the 'OK' within 1ms every   
   > time. The PC application take 300 - 500ms to turn it around and send the   
   > next command.   
      
   Sounds like Nagle being sometimes enabled and sometimes not. Google   
   Nagles algorithm.   
      
   HTH,   
   M4   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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