Attempt to fix JIT instruction cache coherency on Arm64 #614
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jserv
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Benchmarks
| Benchmark suite | Current: ef57d84 | Previous: 9ba5553 | Ratio |
|---|---|---|---|
Dhrystone |
1333 Average DMIPS over 10 runs |
1323 Average DMIPS over 10 runs |
0.99 |
Coremark |
957.852 Average iterations/sec over 10 runs |
906.292 Average iterations/sec over 10 runs |
0.95 |
This comment was automatically generated by workflow using github-action-benchmark.
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The JIT compiler was experiencing intermittent failures on Arm64 / Apple Silicon due to missing instruction cache invalidation after patching branch instructions. When update_branch_imm() modified branch targets in JIT-compiled code, the CPU's instruction cache was not being invalidated, causing it to execute stale cached instructions instead of the newly patched ones.