JDK-8254775 : Microbenchmark StringIndexOfChar doesn't compile
  • Type: Bug
  • Component: core-libs
  • Sub-Component: java.lang
  • Priority: P1
  • Status: Closed
  • Resolution: Fixed
  • Submitted: 2020-10-14
  • Updated: 2021-12-29
  • Resolved: 2020-10-14
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JDK 16
16 b20Fixed
Related Reports
Relates :  
JDK-8173585 - Intrinsify StringLatin1.indexOf(char)
Description
Illegal use of a unicode codepoint > \uFFFF as a char. 
Wrong class name.
Methods shouldn't be static.

This breaks the build, e.g. make build-microbenchmark
Comments
Added jdk11u-fix-no and added back jdk11u-fix-request to document rejection.
29-12-2021
Removing jdk11u-fix-request as JDK-8173585 was rejected for 11u backport.
26-10-2021
Fix Request (11u): Follow-up to JDK-8173585. Original patch applies cleanly after JDK-8173585 backport. PR: https://github.com/openjdk/jdk11u-dev/pull/42
25-10-2021
# Run complete. Total time: 02:14:11 REMEMBER: The numbers below are just data. To gain reusable insights, you need to follow up on why the numbers are the way they are. Use profilers (see -prof, -lprof), design factorial experiments, perform baseline and negative tests that provide experimental control, make sure the benchmarking environment is safe on JVM/OS/HW level, ask for reviews from the domain experts. Do not assume the numbers tell you what you want them to tell. Benchmark (loops) (pathCnt) (rngSeed) Mode Cnt Score Error Units StringIndexOfChar.latin1_AVX2_String 100000 1000 1999 avgt 25 23877.855 ? 943.218 ns/op StringIndexOfChar.latin1_AVX2_char 100000 1000 1999 avgt 25 12352.333 ? 466.249 ns/op StringIndexOfChar.latin1_SSE4_String 100000 1000 1999 avgt 25 19558.919 ? 2014.016 ns/op StringIndexOfChar.latin1_SSE4_char 100000 1000 1999 avgt 25 13915.679 ? 915.338 ns/op StringIndexOfChar.latin1_Short_String 100000 1000 1999 avgt 25 17833.973 ? 1607.578 ns/op StringIndexOfChar.latin1_Short_char 100000 1000 1999 avgt 25 34140.047 ? 1778.503 ns/op StringIndexOfChar.latin1_mixed_String 100000 1000 1999 avgt 25 21357.248 ? 1520.898 ns/op StringIndexOfChar.latin1_mixed_char 100000 1000 1999 avgt 25 34440.085 ? 5968.429 ns/op StringIndexOfChar.utf16_AVX2_String 100000 1000 1999 avgt 25 21816.516 ? 1280.611 ns/op StringIndexOfChar.utf16_AVX2_char 100000 1000 1999 avgt 25 13689.126 ? 814.877 ns/op StringIndexOfChar.utf16_SSE4_String 100000 1000 1999 avgt 25 16202.781 ? 216.418 ns/op StringIndexOfChar.utf16_SSE4_char 100000 1000 1999 avgt 25 12231.238 ? 437.321 ns/op StringIndexOfChar.utf16_Short_String 100000 1000 1999 avgt 25 17605.763 ? 638.349 ns/op StringIndexOfChar.utf16_Short_char 100000 1000 1999 avgt 25 19848.405 ? 433.053 ns/op StringIndexOfChar.utf16_mixed_String 100000 1000 1999 avgt 25 26284.278 ? 637.015 ns/op StringIndexOfChar.utf16_mixed_char 100000 1000 1999 avgt 25 21999.987 ? 1692.110 ns/op Finished running test 'micro:.*StringIndexOfChar.*' Test report is stored in /Users/owner/MARK_SHEPPARD/jdk16-b34/build/macosx-x64/test-results/micro_StringIndexOfChar_ ============================== Test summary ============================== TEST TOTAL PASS FAIL ERROR micro:.*StringIndexOfChar.* 1 1 0 0 ============================== TEST SUCCESS
05-02-2021
verified on local Deve machine against jdk16-b34
05-02-2021
Changeset: 96a1f08e Author: Claes Redestad <redestad@openjdk.org> Date: 2020-10-14 15:25:43 +0000 URL: https://git.openjdk.java.net/jdk/commit/96a1f08e
14-10-2020