Mercurial > hg > truffle
changeset 7452:e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
Summary: Log warning messages for DefNew+CMS and ParNew+SerialOld
Reviewed-by: ysr, jwilhelm, jcoomes
author | brutisso |
---|---|
date | Fri, 04 Jan 2013 11:10:17 +0100 |
parents | ca0a78017dc7 |
children | c98b676a98b4 |
files | src/share/vm/runtime/arguments.cpp src/share/vm/runtime/arguments.hpp |
diffstat | 2 files changed, 16 insertions(+), 0 deletions(-) [+] |
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--- a/src/share/vm/runtime/arguments.cpp Sun Dec 30 08:47:52 2012 +0100 +++ b/src/share/vm/runtime/arguments.cpp Fri Jan 04 11:10:17 2013 +0100 @@ -1778,6 +1778,20 @@ return status; } +void Arguments::check_deprecated_gcs() { + if (UseConcMarkSweepGC && !UseParNewGC) { + warning("Using the DefNew young collector with the CMS collector is deprecated " + "and will likely be removed in a future release"); + } + + if (UseParNewGC && !UseConcMarkSweepGC) { + // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't + // set up UseSerialGC properly, so that can't be used in the check here. + warning("Using the ParNew young collector with the Serial old collector is deprecated " + "and will likely be removed in a future release"); + } +} + // Check stack pages settings bool Arguments::check_stack_pages() { @@ -3242,6 +3256,7 @@ } else if (UseG1GC) { set_g1_gc_flags(); } + check_deprecated_gcs(); #endif // INCLUDE_ALTERNATE_GCS #ifdef SERIALGC
--- a/src/share/vm/runtime/arguments.hpp Sun Dec 30 08:47:52 2012 +0100 +++ b/src/share/vm/runtime/arguments.hpp Fri Jan 04 11:10:17 2013 +0100 @@ -413,6 +413,7 @@ static jint adjust_after_os(); // Check for consistency in the selection of the garbage collector. static bool check_gc_consistency(); + static void check_deprecated_gcs(); // Check consistecy or otherwise of VM argument settings static bool check_vm_args_consistency(); // Check stack pages settings