OpenJDK / amber / amber
changeset 56419:30094911fffd
8224880: AArch64: java/javac error with AllocatePrefetchDistance
Reviewed-by: adinn
| author | aph |
|---|---|
| date | Tue, 28 May 2019 09:13:11 -0400 |
| parents | 755f1c66a891 |
| children | 0422b4b5cb8e |
| files | src/hotspot/cpu/aarch64/vm_version_aarch64.cpp |
| diffstat | 1 files changed, 4 insertions(+), 1 deletions(-) [+] |
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--- a/src/hotspot/cpu/aarch64/vm_version_aarch64.cpp Tue May 28 08:25:22 2019 -0400 +++ b/src/hotspot/cpu/aarch64/vm_version_aarch64.cpp Tue May 28 09:13:11 2019 -0400 @@ -129,8 +129,11 @@ int dcache_line = VM_Version::dcache_line_size(); + // Limit AllocatePrefetchDistance so that it does not exceed the + // constraint in AllocatePrefetchDistanceConstraintFunc. if (FLAG_IS_DEFAULT(AllocatePrefetchDistance)) - FLAG_SET_DEFAULT(AllocatePrefetchDistance, 3*dcache_line); + FLAG_SET_DEFAULT(AllocatePrefetchDistance, MIN2(512, 3*dcache_line)); + if (FLAG_IS_DEFAULT(AllocatePrefetchStepSize)) FLAG_SET_DEFAULT(AllocatePrefetchStepSize, dcache_line); if (FLAG_IS_DEFAULT(PrefetchScanIntervalInBytes))