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Type:
Enhancement
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Resolution: Fixed
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Priority:
P4
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Affects Version/s: 20
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Component/s: hotspot
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b25
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riscv
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linux
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8297599 | 19.0.2 | Vladimir Kempik | P4 | Resolved | Fixed | b07 |
| JDK-8311736 | 17.0.9 | Fei Yang | P4 | Resolved | Fixed | b01 |
Currently copy_memory stub on risc-v is doing 8-byte copy per loop at best
We can improve that to 32-bytes per loop ( doing it similar to memcpy in newlib) - four ld and four sd per loop
Also copy_memory produces some dead ( never executed) code when is_aligned is true. Lets eliminate that as well
We can improve that to 32-bytes per loop ( doing it similar to memcpy in newlib) - four ld and four sd per loop
Also copy_memory produces some dead ( never executed) code when is_aligned is true. Lets eliminate that as well
- backported by
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JDK-8297599 RISC-V: improve performance of copy_memory stub
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- Resolved
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- Resolved
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- links to
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Commit
openjdk/jdk17u-dev/966fc82d
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Commit
openjdk/jdk19u/7e340b3c
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Commit
openjdk/jdk/bd57e213
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Review
openjdk/jdk17u-dev/1427
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Review
openjdk/jdk19u/77
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Review
openjdk/jdk/11058
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Review
openjdk/riscv-port-jdk17u/9
(4 links to)