Hi,
using the new ability to archive immutable heap graphs into the CDS
archive, even archiving small things like the Integer.IntegerCache can
be profitable.
Webrev: http://cr.openjdk.java.net/~redestad/8209120/open.00/
Bug: https://bugs.openjdk.java.net/browse/JDK-8209120
For a default cache (256 elements), this change saves us ~1 million
instructions. Applications that use -XX:AutoBoxCacheMax can profit
further (and we can use this to stress test the archiving feature..)
The patch is built on top of and tested with Jiangli's patch for
https://bugs.openjdk.java.net/browse/JDK-8207263 and I don't intent to
push this before that is in.
Thanks!
/Claes
