[Backport] 8246718: ParallelGC should not check for forward objects for copy task queue #804
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…or copy task queue Summary: Prefetch task's oop markword and unconditionally push task. Testing: jtreg Reviewers: maoliang.ml, yude.lyd Issue: dragonwell-project#803
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We compared the critical-jOPS change before and after port JDK-8246718(https://bugs.openjdk.org/browse/JDK-8246718), it improves from 49, 569 to 59, 672, nearly 20% improvement. At the same time the max-jOPS is not seen evident change.
Test config:
CPU: Yitian710
CPU number: 64
Heap: 31G