If I remember correctly ... CDS was disabled on the zero build because CDS used to require CPU-specific stubs for patching C++ vtable, which were removed in JDK-8005165. So CDS should be able to run on zero builds.
(After the fix)
$ perf stat -r 40 ./images/jdk/bin/java -Xshare:off -version
0.034645 +- 0.000044 seconds time elapsed ( +- 0.13% )
$ perf stat -r 40 ./images/jdk/bin/java -version
0.018080 +- 0.000388 seconds time elapsed ( +- 2.15% )
(After the fix)
$ perf stat -r 40 ./images/jdk/bin/java -Xshare:off -version
0.034645 +- 0.000044 seconds time elapsed ( +- 0.13% )
$ perf stat -r 40 ./images/jdk/bin/java -version
0.018080 +- 0.000388 seconds time elapsed ( +- 2.15% )
- relates to
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JDK-8292329 Enable CDS shared heap for zero builds
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- Resolved
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- Resolved
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- Closed
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