I've added a new feature to the Remoting 2.4 branch which allows the
destruction of a client invoker to be delayed by some number of microseconds.
The idea is to pick a delay long enough that the client invoker will still be
around to be used by the next invocation on the same server. It could be
useful in a situation where there are not a lot of concurrent invocations.
The delay is turned off by default, but it can be turned on by setting the
parameter Client.INVOKER_DESTRUCTION_DELAY (actual value
"invokerDestructionDelay") to a positive integer. The value can be set either
by
* adding "invokerDestructionDelay=xxx" to the InvokerLocator, or
* adding the value with key "invokerDestructionDelay" to the configuration map
passed to the Client constructor.
For EJB3 clients, the value should be set in the Connector MBean in the file
.../server/default/deploy/ejb3.deployer/META-INF/jboss-service.xml.
Just to illustrate the value of this feature, I ran the following loop:
| for (int i = 0; i < 10000; i++)
| {
| Client client = new Client(locator, config);
| client.connect();
| client.invoke("abc");
| client.disconnect();
| }
|
with and without a delay, and I got the following results:
| run delay=0 delay=5000
| -------------------------------
| 1 46937 22657
| 2 49265 24016
| 3 47750 23375
| ---------------------------------
| avg: 47989 23349
|
|
The average speed up is a factor of 2.06. This was a simple in-jvm test, with
nothing else going on, but it's still interesting.
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