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• Type: Enhancement
• Resolution: Fixed
• Priority: P4
• Fix Version/s: 9
• Affects Version/s: 9

In course of JMM 9 work [1], we need to conduct a few performance studies.
This particular study needs to figure out if the access-atomicity exception for
64-bit data types is pragmatic at this point.

This issue tracks the experimental VM work for that; it can be also merged to master,
if we want to simplify performance study freeing everyone from building the patched VM.

[1] http://openjdk.java.net/jeps/188

relates to

JDK-8343541 C1: Plain memory accesses are emitted with membars with +AlwaysAtomicAccesses

• 
• Resolved

JDK-8267710 [lworld][lw3] Hook AlwaysAtomicAccesses to primitive classes atomicity rules

• 
• Resolved