Performance plateau when keepalives enabled

powderhound nginx-forum at nginx.us
Tue Mar 9 05:35:47 MSK 2010


More information:

With keepalive_timeout 65, this is what /nginx_status looks like, and
new connections take 5-20 seconds to start delivering content.

Active connections: 1552 
server accepts handled requests
 2940 2940 38965 
Reading: 0 Writing: 271 Waiting: 1281

With keepalive_timeout 0, this is what /nginx_status looks like
with the same workload, new connections start receiving
content immediately.

Active connections: 2 
server accepts handled requests
 5797 5797 5796 
Reading: 1 Writing: 1 Waiting: 0

Can anyone suggest what to look at next?  Is there some
extra logging I can turn on that might shed light on the situation?

Steve

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,61482,61704#msg-61704




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