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Type: Enhancement
Resolution: Duplicate
Priority: P4
Fix Version/s: 19
Affects Version/s: None
Component/s: hotspot
Labels:

Subcomponent:
runtime
CPU:

aarch64
OS:

linux

Performance data for Neoverse N1 shows that `isb` can be used to emulate the x86 `pause`. It is more reliable than `yield` or a sequence of `nop`.

duplicates

JDK-8277137 Set OnSpinWaitInst/OnSpinWaitInstCount defaults to "isb"/1 for Arm Neoverse N1

Resolved

JDK-8278241 Implement JVM SpinPause on linux-aarch64

Resolved

relates to

JDK-8186670 Implement _onSpinWait() intrinsic for AArch64

Resolved

Assignee:: Evgeny Astigeevich

Reporter:: Evgeny Astigeevich

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Created:: 2020-12-17 07:45

Updated:: 2021-12-15 09:24

Resolved:: 2021-12-15 09:23