| commit | f7e26c508d27b89c5cdb269480d54550b31b7370 | [log] [tgz] |
|---|---|---|
| author | Tess Strickland <sstrickl@google.com> | Sat Jun 24 12:56:12 2023 +0000 |
| committer | Commit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com> | Sat Jun 24 12:56:12 2023 +0000 |
| tree | 3ff8b4d12fd75d77bbbaebba016c12e36833256b | |
| parent | a92a1e5064eeb1fcc21fe9d1203d806b12ed86b3 [diff] |
[vm] Add support for hash-based caches in SubtypeNTestCache stubs. This also lowers the threshold for converting from a linear cache to a hash-based cache from 100 to 30 on non-IA32 architectures. (IA32 still goes to runtime if there's a hash-based cache.) For SubtypeTestCache benchmarks above this threshold, we see an improvement varying from ~50-100% to ~700-800% on all architectures, from lowest number of checks (50) to highest (1000). For SubtypeTestCache benchmarks below this threshold, no major changes are seen: generally <5% improvement or <5% regression per check at most. TEST=vm/cc/TTS Change-Id: I83aa7c085ab5a411e944ec660d6b8eba7a788ee0 Cq-Include-Trybots: luci.dart.try:vm-aot-linux-debug-simriscv64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-release-x64-try,vm-aot-linux-product-x64-try,vm-aot-linux-release-simarm64-try,vm-aot-linux-release-simarm_x64-try,vm-aot-linux-debug-x64c-try,vm-aot-tsan-linux-release-x64-try,vm-aot-mac-release-arm64-try,vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-aot-dwarf-linux-product-x64-try,vm-linux-release-ia32-try,vm-linux-debug-x64c-try,vm-linux-debug-x64-try,vm-linux-debug-simriscv64-try,vm-linux-release-simarm64-try,vm-linux-release-simarm-try,vm-mac-release-arm64-try,vm-mac-release-x64-try,vm-tsan-linux-release-x64-try,vm-reload-rollback-linux-release-x64-try,vm-reload-linux-release-x64-try,vm-ffi-qemu-linux-release-arm-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/308941 Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Tess Strickland <sstrickl@google.com>
Dart is:
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