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eclipse-openj9 / openj9

Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.
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ghftm001 test failed with Concurrent Scavenge #3453

Open dmitripivkine opened 6 years ago

dmitripivkine commented 6 years ago

JVMTI Test ghftm001.java initiates GC cycle and waiting (sleeping) for GC Cycle End event. However current implementation of Concurrent Scavenger does not force final STW Scavenge to complete cycle but expect it to be triggered by next Allocation Failure. So, because there is no further allocation in the test it reached timeout and failed eventually. Concurrent Scavenger should force final STW Scavenge as soon as concurrent phase is complete.

gita-omr commented 5 years ago

We would like to enable https://github.com/eclipse/openj9/issues/3421 in 0.13. Do we need to fix this one by then? @pshipton

amicic commented 5 years ago

This is (I believe) an IBM cooked test that checks if an already started GC cycle finishes with (probably arbitrarily chosen) 30 sec even if there is no application activity. It's just a nice to have feature not imposed by specs.

There are more important ones to fix in CS world than this one, so I'm guessing, this won't be fixed for at least next few months.

Besides, it's affecting all platforms - I don't think it should prevent P from enabling CS.