> Greetings, > > JDK-8243962 has been a large effort to chase down intermittent timeouts for > certain JVMTI tests when run on Windows > debug builds in combination with JFR. The background is long, included in > JDK-8243962. > In short, the combination of some JVMTI thread suspension tests when run > together with JFR on saturated Windows 2016 > debug builds can intermittently time out. > There have been two major changes made to JFR derived from JDK-8243962 > (linked therein) in an attempt to reduce the > poor scalability observed. > Unfortunately, the efforts have not fully resolved the situation entirely as > there have still been intermittent > sightings for the following tests: > vmTestbase/nsk/jvmti/scenarios/sampling/SP04/sp04t002/TestDescription.java > vmTestbase/nsk/jvmti/scenarios/sampling/SP04/sp04t001/TestDescription.java > vmTestbase/nsk/jvmti/scenarios/sampling/SP03/sp03t001/TestDescription.java > vmTestbase/nsk/jvmti/scenarios/sampling/SP03/sp03t002/TestDescription.java > > This change will add a requires expression to these tests to exclude the > combination of running them with JFR on > Windows debug builds. > Thanks > Markus
Markus Grönlund has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision: - deMorgan - Merge branch 'master' into 8243962 - 8243962: Various JVM TI tests time out using JFR on Windows ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/712/files - new: https://git.openjdk.java.net/jdk/pull/712/files/4f899253..cf381fcc Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=712&range=01 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=712&range=00-01 Stats: 162 lines in 21 files changed: 95 ins; 32 del; 35 mod Patch: https://git.openjdk.java.net/jdk/pull/712.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/712/head:pull/712 PR: https://git.openjdk.java.net/jdk/pull/712
