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Enhancement
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Resolution: Fixed
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P4
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11, 16
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b24
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aarch64
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linux
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8263733 | 13.0.7 | Sergey Nazarkin | P4 | Resolved | Fixed | b04 |
| JDK-8266006 | 11.0.12 | Dong Bo | P4 | Resolved | Fixed | b01 |
Base64.encodeBlock are not intrinsified on aarch64, which has been done on x86_64.
We can implement it with LD3/TBL instruction, a basic idea: http://0x80.pl/articles/base64-simd-neon.html#encoding-quadwords.
The performance improvements shown there are promising.
The usage of TBL instruction: https://developer.arm.com/documentation/dui0801/g/A64-SIMD-Vector-Instructions/TBL--vector-?lang=en.
We can implement it with LD3/TBL instruction, a basic idea: http://0x80.pl/articles/base64-simd-neon.html#encoding-quadwords.
The performance improvements shown there are promising.
The usage of TBL instruction: https://developer.arm.com/documentation/dui0801/g/A64-SIMD-Vector-Instructions/TBL--vector-?lang=en.
- backported by
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JDK-8263733 AArch64: Implement Base64.encodeBlock accelerator/intrinsic
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- Resolved
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- Resolved
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- links to
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Commit
openjdk/jdk13u-dev/ebea17d0
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Commit
openjdk/jdk/8638cd9a
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Review
openjdk/jdk13u-dev/149
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Review
openjdk/jdk/992
(1 links to)