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Forum Discussion

Eridano_Di_Piet's avatar
Eridano_Di_Piet
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Mar 25, 2010

Bad HTTP LB performance

Hi guys,   I've an F5 LTM pair used to load balance HTTP requests (actually they're HTTP/XML post, cos we're using SOAP).   Traffic comes from one client directly connected to the LB, hits ...
config
design
L4L7_53191's avatar
L4L7_53191
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Mar 25, 2010
Odd. I just did some testing with my profiles with a little xmlrpc server and client I hacked together. The testing is all on windows (didn't have time to test this on *nix). By far the most important setting that I toggle is "Ack on Push", which is apparently a big help for MAC and Windows stacks. If anyone knows the details on this I'd love to know. Nagle made a difference too, but not nearly as dramatic. This is enabled with the lan-optimized profile so I'd expect we're dealing with something else...

 

 

What Operating systems are involved here? Have you by chance looked at this thread? http://devcentral.f5.com/Default.aspx?tabid=53&forumid=31&tpage=1&view=topic&postid=11706051170771

 

 

-Matt