> 8315770: serviceability/sa/TestJmapCoreMetaspace.java should run with > -XX:-VerifyDependencies > > serviceability/sa/TestJmapCoreMetaspace.java runs in hotspot:tier2, and takes > about 330 seconds out of 670 seconds of the entire run on x86_64 fastdebug. > The tier2 completion usually waits on it. Profiling shows we are spending > time during classloading, checking dependencies. Since we load lots of > classes, we do it many times, and each time the cost grows linearly to the > number of classes. Some other tests that target metaspace explicitly disable > `VerifyDependencies` to avoid this. > > The commit includes adding "-XX:-VerifyDependencies" along with > "-XX:+IgnoreUnrecognizedVMOptions" in TestJmapCore.java to make sure that > release builds work with the test, as VerifyDependencies is a develop option > and not available in release builds. The changes in the commit are resulting > in considerable improvement for the test in fastdebug mode as can be seen > below: > > * before: **130.41s user 14.11s system 118% cpu 2:01.85 total** > * after: **27.52s user 13.64s system 213% cpu 19.249 total**
Soumadipta Roy has updated the pull request incrementally with one additional commit since the last revision: Replace IgnoreUnrecognizedVMOptions with Platform.isDebugBuild() and add comment about the change forbetter readability. ------------- Changes: - all: https://git.openjdk.org/jdk/pull/15631/files - new: https://git.openjdk.org/jdk/pull/15631/files/a3aec144..7b6af094 Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=15631&range=02 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15631&range=01-02 Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/15631.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/15631/head:pull/15631 PR: https://git.openjdk.org/jdk/pull/15631
