On Tue, 23 Aug 2022 15:56:35 GMT, Ioi Lam <ik...@openjdk.org> wrote: > 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% )
This pull request has now been integrated. Changeset: 76ee5495 Author: Ioi Lam <ik...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/76ee5495cd00f5546a5748051cc36965a8e936db Stats: 13 lines in 1 file changed: 11 ins; 0 del; 2 mod 8292329: Enable CDS shared heap for zero builds Reviewed-by: shade, erikj, ihse ------------- PR: https://git.openjdk.org/jdk/pull/9984
