Details
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Improvement
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Status: Closed
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Major
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Resolution: Fixed
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None
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None
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Patch
Description
The check introduced in OAK-4966 is relying on the first MemoryPoolMXBean found that matches the criteria. This means that, depending on the JVM, it will be checking any of the: PS Eden Space, PS Survivor Space or PS Old Gen Space - whichever is found first.
I am proposing a more reliable way to check this:
1. check the biggest pool - this usually corresponds to PS Old Gen (by default 2/3 of the heap), which is more stable and reflects better the usage of the heap.
2. use getCollectionUsage() instead of getUsage() to check the state of the heap after a GC. This way we avoid checking during temporary peaks of the used heap.
Attachments
Attachments
Issue Links
- relates to
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OAK-4966 Re-introduce a blocker for compaction based on available heap
- Closed