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Bug ID: 6765954
Votes 0
Synopsis par compact - stress mode for splitting young gen spaces
Category hotspot:garbage_collector
Reported Against
Release Fixed hs14(b09), 7(b42) (Bug ID:2172402) , 6u14(b01) (Bug ID:2172861)
State 10-Fix Delivered, request for enhancement
Priority: 3-Medium
Related Bugs 6765745 , 6786188
Submit Date 31-OCT-2008
Description
CR 6765745 (par compact - allow young gen spaces to be split) introduces a feature which is not exercised often in normal use.  Build a stress mode into debug JVMs to provoke splitting young gen spaces.
Posted Date : 2008-10-31 05:06:15.0
Work Around
N/A
Evaluation
Add code to fill unused parts of the young gen and old gen with dummy live objects, and set the dense prefix in the old gen, to provoke splitting a young gen space.  The filling must occur during the summary phase of par compaction.
Posted Date : 2008-10-31 05:06:15.0

http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/0f773163217d
Posted Date : 2008-12-12 03:19:41.0
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