> ZERO uses UseSerialGC by default. When we dump the default CDS archive during > the build process, it fails to dump the shared heap (which requires G1GC). > > The fix is to force -XX:+UseG1GC when dumping the default CDS archive during > the build process. > > Speed up: > > (Before) > $ perf stat -r 40 ./images/jdk/bin/java -version > 0.018080 +- 0.000388 seconds time elapsed ( +- 2.15% ) > > (After) > $ perf stat -r 40 ./images/jdk/bin/java -version > 0.011986 +- 0.000205 seconds time elapsed ( +- 1.71% )
Ioi Lam has updated the pull request incrementally with one additional commit since the last revision: @shipilev review comments ------------- Changes: - all: https://git.openjdk.org/jdk/pull/9984/files - new: https://git.openjdk.org/jdk/pull/9984/files/5c490e5e..f57ba86b Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=9984&range=01 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9984&range=00-01 Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/9984.diff Fetch: git fetch https://git.openjdk.org/jdk pull/9984/head:pull/9984 PR: https://git.openjdk.org/jdk/pull/9984
