Author: markt
Date: Fri Feb 12 15:00:44 2016
New Revision: 1730034
URL: http://svn.apache.org/viewvc?rev=1730034&view=rev
Log:
Performance optimisation.
For a very simple servlet this reduces processing time by ~1%.
Modified:
tomcat/trunk/java/org/apache/coyote/AsyncStateMachine.java
Modified: tomcat/trunk/java/org/apache/coyote/AsyncStateMachine.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/coyote/AsyncStateMachine.java?rev=1730034&r1=1730033&r2=1730034&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/coyote/AsyncStateMachine.java [UTF-8]
(original)
+++ tomcat/trunk/java/org/apache/coyote/AsyncStateMachine.java [UTF-8] Fri Feb
12 15:00:44 2016
@@ -411,11 +411,18 @@ public class AsyncStateMachine {
public synchronized void recycle() {
+ // Use lastAsyncStart to determine if this instance has been used since
+ // it was last recycled. If it hasn't there is no need to recycle again
+ // which saves the relatively expensive call to notifyAll()
+ if (lastAsyncStart == 0) {
+ return;
+ }
// Ensure in case of error that any non-container threads that have
been
// paused are unpaused.
notifyAll();
asyncCtxt = null;
state = AsyncState.DISPATCHED;
+ lastAsyncStart = 0;
}
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