JDK-8241492 : Strip mining not working for test/hotspot/jtreg/compiler/c2/Test6850611.java
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 11,12,13,14,15
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2020-03-24
- Updated: 2020-04-29
- Resolved: 2020-04-02
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| JDK 15 |
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15 b18Fixed  |
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Description
I notice we got over a second reaching safepoint with this test. I don't see how that would be possible if it was proper strip mined. E.g. jtreg -va -retain -javaoptions:"-Xlog:safepoint -XX:+UseG1GC -XX:+UseCountedLoopSafepoints -XX:LoopStripMiningIter=1000 -XX:LoopStripMiningIterShortLoop=100" -testjdk:build/linux-x86_64-server-fastdebug/images/jdk/ open/test/hotspot/jtreg/compiler/c2/Test6850611.java (options is not needed as they are also default, except log) [2.215s][info][safepoint] Safepoint "Cleanup", Time since last: 1101783997 ns, Reaching safepoint: 1039624721 ns, At safepoint: 29953 ns, Total: 1039654674 ns [4.326s][info][safepoint] Safepoint "Cleanup", Time since last: 1000438383 ns, Reaching safepoint: 1110582065 ns, At safepoint: 15462 ns, Total: 1110597527 ns Note that this is fastdebug.
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