Depth first object copying for all GC?
Tangwei (Euler Architecture & Design Dept)
tangwei6 at huawei.com
Wed May 6 11:34:55 UTC 2015
As a newbie in GC, I found some discussion on object copying order in following slides: breadth vs. depth.
It mentioned that "Any static policy will hurt some applications and help others". After searching, there is a BZ shows
the object copying order has been switched from breadth to depth for ParallelGC in OpenJDK, please correct if I am wrong.
Anyone can help to confirm if all GC in OpenJDK use depth first copying now?
Is there any performance consideration to choose depth first instead of controlling by option?
https://bugs.openjdk.java.net/browse/JDK-6450584: Improve object copying order in parallel scavenge
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