stuartwdouglas/jboss-as — comment on commit 0c7e938e80f485b060456a0160ba0fa0049160de
File: ejb3/src/test/resources/org/jboss/as/ejb3/subsystem/subsystem.xml line 45
By jaikiran:

We had a user report that in the absence of a pool (the previous InfinitePool behaved in that fashion) he saw a terrible performance resulting due the frequent creation of EntityBeanComponentInstance and the GC it triggered https://issues.jboss.org/browse/AS7-3355.

I do agree that in case of entity beans the pool size might not be easily defined (by default), but I guess setting it to a reasonable value would perhaps at least allow users to change that value easily, instead of having to figure out that the pooling disabled by default and then having to enable it and set a right value.