Details
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Enhancement
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Resolution: Fixed
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P4
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8-shenandoah, 11.0.9, 12, 13, 14
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b05
Backports
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8272909 | 11.0.13 | Aleksey Shipilev | P4 | Resolved | Fixed | b04 |
Description
This is the follow-up after JDK-8222766, but for AArch64.
After LRB switched Shenandoah to strong to-space invariant, we can simplify CAS handling logic a bit. Notably, we can avoid the retry loop that was needed due to from-space ptrs potentially stored in memory.
Current CAS code in AArch64 uses LL/SC with retries already, and so it needs to be carefully reviewed and optimized.
After LRB switched Shenandoah to strong to-space invariant, we can simplify CAS handling logic a bit. Notably, we can avoid the retry loop that was needed due to from-space ptrs potentially stored in memory.
Current CAS code in AArch64 uses LL/SC with retries already, and so it needs to be carefully reviewed and optimized.
Attachments
Issue Links
- backported by
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JDK-8272909 Shenandoah: streamline post-LRB CAS barrier (aarch64)
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- Resolved
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- is blocked by
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JDK-8232778 Shenandoah: SBSA::arraycopy_prologue checks wrong register
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- Resolved
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- relates to
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- Resolved
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