RFR: 8377225: RISC-V: Improve receiver type profiling reliability
Anjian Wen
wenanjian at openjdk.org
Thu Feb 5 11:32:07 UTC 2026
Same as JDK-8357258, this patch try to improve the receiver type profile reliability in riscv.
Functional Testing: tier1 Passed
Performance Testing: no regression
# Baseline
Benchmark (randomized) Mode Cnt Score Error Units
InterfaceCalls.test1stInt2Types false avgt 12 9.371 ± 0.007 ns/op
InterfaceCalls.test1stInt2Types true avgt 12 14.168 ± 0.025 ns/op
InterfaceCalls.test1stInt3Types false avgt 12 38.390 ± 0.261 ns/op
InterfaceCalls.test1stInt3Types true avgt 12 39.634 ± 0.122 ns/op
InterfaceCalls.test1stInt5Types false avgt 12 40.960 ± 1.909 ns/op
InterfaceCalls.test1stInt5Types true avgt 12 41.235 ± 0.126 ns/op
InterfaceCalls.test2ndInt2Types false avgt 12 10.227 ± 0.333 ns/op
InterfaceCalls.test2ndInt2Types true avgt 12 14.657 ± 0.049 ns/op
InterfaceCalls.test2ndInt3Types false avgt 12 42.756 ± 0.563 ns/op
InterfaceCalls.test2ndInt3Types true avgt 12 50.112 ± 0.302 ns/op
InterfaceCalls.test2ndInt5Types false avgt 12 59.637 ± 1.900 ns/op
InterfaceCalls.test2ndInt5Types true avgt 12 56.992 ± 0.162 ns/op
InterfaceCalls.testIfaceCall false avgt 12 38.731 ± 0.749 ns/op
InterfaceCalls.testIfaceCall true avgt 12 38.218 ± 0.283 ns/op
InterfaceCalls.testIfaceExtCall false avgt 12 41.505 ± 3.659 ns/op
InterfaceCalls.testIfaceExtCall true avgt 12 39.611 ± 0.483 ns/op
InterfaceCalls.testMonomorphic false avgt 12 8.476 ± 0.011 ns/op
InterfaceCalls.testMonomorphic true avgt 12 8.475 ± 0.007 ns/op
# With Patch
Benchmark (randomized) Mode Cnt Score Error Units
InterfaceCalls.test1stInt2Types false avgt 12 9.804 ± 0.401 ns/op
InterfaceCalls.test1stInt2Types true avgt 12 14.171 ± 0.029 ns/op
InterfaceCalls.test1stInt3Types false avgt 12 38.793 ± 0.677 ns/op
InterfaceCalls.test1stInt3Types true avgt 12 39.498 ± 0.351 ns/op
InterfaceCalls.test1stInt5Types false avgt 12 40.916 ± 0.771 ns/op
InterfaceCalls.test1stInt5Types true avgt 12 41.705 ± 1.356 ns/op
InterfaceCalls.test2ndInt2Types false avgt 12 10.222 ± 0.340 ns/op
InterfaceCalls.test2ndInt2Types true avgt 12 14.659 ± 0.033 ns/op
InterfaceCalls.test2ndInt3Types false avgt 12 42.375 ± 0.681 ns/op
InterfaceCalls.test2ndInt3Types true avgt 12 50.587 ± 1.146 ns/op
InterfaceCalls.test2ndInt5Types false avgt 12 59.881 ± 2.052 ns/op
InterfaceCalls.test2ndInt5Types true avgt 12 56.928 ± 0.287 ns/op
InterfaceCalls.testIfaceCall false avgt 12 38.101 ± 0.038 ns/op
InterfaceCalls.testIfaceCall true avgt 12 38.892 ± 0.717 ns/op
InterfaceCalls.testIfaceExtCall false avgt 12 39.403 ± 0.258 ns/op
InterfaceCalls.testIfaceExtCall true avgt 12 40.129 ± 0.759 ns/op
InterfaceCalls.testMonomorphic false avgt 12 8.473 ± 0.007 ns/op
InterfaceCalls.testMonomorphic true avgt 12 8.474 ± 0.010 ns/op
-------------
Commit messages:
- RISCV: Improve receiver type profiling reliability
Changes: https://git.openjdk.org/jdk/pull/29310/files
Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29310&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8377225
Stats: 376 lines in 7 files changed: 157 ins; 204 del; 15 mod
Patch: https://git.openjdk.org/jdk/pull/29310.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/29310/head:pull/29310
PR: https://git.openjdk.org/jdk/pull/29310
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