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8305753: Allow JIT compilation for -Xshare:dump

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Reviewed-by: dholmes, matsaave, ccheung
This commit is contained in:
Ioi Lam 2023-10-24 06:34:50 +00:00
parent 728b858c78
commit 08f79148c6
4 changed files with 36 additions and 10 deletions
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12
src/java.base/share/man/java.1
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@ -5069,6 +5069,18 @@ The output of this command should contain the following text:
\f[V][info][class,load] test.Hello source: shared objects file\f[R]
.RE
.RE
.PP
By default, when the \f[V]-Xshare:dump\f[R] option is used, the JVM runs
in interpreter-only mode (as if the \f[V]-Xint\f[R] option were
specified).
This is required for generating deterministic output in the shared
archive file.
I.e., the exact same archive will be generated, bit-for-bit, every time
you dump it.
However, if deterministic output is not needed, and you have a large
classlist, you can explicitly add \f[V]-Xmixed\f[R] to the command-line
to enable the JIT compiler.
This will speed up the archive creation.
.SS Creating a Dynamic CDS Archive File with -XX:ArchiveClassesAtExit
.PP
Advantages of dynamic CDS archives are: