CMS Promotion Failures

[Brian Williams]

Thanks Ramki.  If you can entertain a few followup questions:

1.  If there is anything that could explain, beyond application usage, getting the promotion failures closer and closer together.

2.  And as a follow on question.  If calling System.gc() leaves the heap in a better state than a promotion failure?  (This will help us to answer whether we want to push for a server restart or a scheduled GC).

3.  Would using fewer parallel GC threads help reduce the fragmentation by having fewer PLABs?

Brian