> …ue to large TLAB size > > serviceability/jvmti/HeapMonitor tests intermittently fail when using > PS/Serial GC, original test has implicit assumptions on TLAB size and depends > on allocate fix amount of objects to consume TLAB and trigger object > sampling. These tests will fail if TLAB is above 20M (this can easily happen > when using PS/Serial GC and heap is large), when allocation can not consume > current TLAB and _byte_until_sample. > > Fix in tests is adding an explicit GC to consume current TLAB. > Running on 256G memory machine, make run-test CONF=release > TEST="test/hotspot/jtreg/serviceability/jvmti/HeapMonitor/MyPackage/" > 'JTREG=JOBS=12;VM_OPTIONS=-XX:ActiveProcessorCount=1' > > before fix: 6 or 7 tests in 20 tests intermittently fail > after fix: no failure in 100 runs release/fastdebug > > This might also fix https://bugs.openjdk.java.net/browse/JDK-8225313
Hui Shi has updated the pull request incrementally with one additional commit since the last revision: update copyright year ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/3265/files - new: https://git.openjdk.java.net/jdk/pull/3265/files/0b098656..3dd108d5 Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3265&range=01 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3265&range=00-01 Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod Patch: https://git.openjdk.java.net/jdk/pull/3265.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/3265/head:pull/3265 PR: https://git.openjdk.java.net/jdk/pull/3265
