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Type: Enhancement
Resolution: Fixed
Priority: P3
Fix Version/s: 14
Affects Version/s: 11, 13, 14
Component/s: hotspot
Labels:
- c2
- redhat-interest

Subcomponent:
compiler
Resolved In Build:
b27

Memory barriers around off-heap accesses severely affect performance (as reported by ~~JDK-8224182~~).

duplicates

JDK-8224182 [Performance] sun.misc.Unsafe.[put|get]* suffer from redundant memory barriers

Closed

relates to

JDK-8235636 gc/shenandoah/compiler/TestUnsafeOffheapSwap.java fails after JDK-8226411

Resolved

JDK-8224996 Investigate memory access C2 optimizations

Closed

Assignee:: Vladimir Ivanov

Reporter:: Vladimir Ivanov

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Created:: 2019-06-19 10:58

Updated:: 2019-12-16 19:31

Resolved:: 2019-12-09 09:06