Nginx-Clojure Module Release 0.1.0--Let Nginx embrace Clojure & Java

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With the default setting pipe is not used.

Pipe is only used for enable jvm thread pool mode only when jvm_workers > 0
(jvm_workers  default  = 0).

Further more pipe is never used to transfer the while request or response
message.
When under jvm thread pool mode, pipe is only used to transfer a event flag
(only one pointer size)。

ONLY IF you cann't resolve your performance problems by increasing
worker_processes or reducing single request-response time, you can consider
the way of setting jvm_workers > 0 which is not encouraged.

Thread switch cost means Thread context switch cost.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,246437,246458#msg-246458