RFR (M): 8138983: Runtime: implement ranges for Shared*** flags

gerard ziemski gerard.ziemski at oracle.com
Fri Nov 6 21:33:11 UTC 2015


hi all,

I have updated the fix with rev1, incorporating feedback from Dmitry:

- Fix comments and indentation
- Add "-XShare:dump" while testing Shared* flags
- Temporarily disable testing of SharedMiscDataSize as with current min default it exits the VM with code 2 (which is 
allowed by the JEP, but not the test framework). This issue is tracked by JDK-8141650

http://cr.openjdk.java.net/~gziemski/8138983_rev1



cheers



On 11/06/2015 09:58 AM, gerard ziemski wrote:
>
> hi all,
>
> Please review this final fix for JEP-245
>
> We implement the remaining runtime flags in the Shared* family.
>
> Summary of changes:
>
> #1 core fix - we factor out the constants to be used in the ranges
>
> src/share/vm/classfile/compactHashtable.cpp
> src/share/vm/memory/metaspace.cpp
> src/share/vm/memory/metaspaceShared.hpp
> src/share/vm/runtime/globals.hpp
>
>
> #2 we increase default sizes of range and constraint tables to minimize mallocs
>
> src/share/vm/runtime/commandLineFlagConstraintList.cpp
> src/share/vm/runtime/commandLineFlagRangeList.cpp
>
>
> #3 we fix a bug that I run into the OptionsValidation test framework while working
>
> test/runtime/CommandLine/OptionsValidation/common/optionsvalidation/IntJVMOption.java
>
>
> #4 we add functionality to OptionsValidation test framework that we later use
>
> test/runtime/CommandLine/OptionsValidation/common/optionsvalidation/JVMOptionsUtils.java
>
>
> #5 we cleanup and extend the existing test to detect a case where we get out of range value
>
> test/runtime/SharedArchiveFile/LimitSharedSizes.java
>
>
> The fix passes RBT "hotspot/test/:hotspot_all,testlist,noncolo.testlist --add-tonga-keyword quick” and JPRT “hotspot" tests
>
> References:
>
>      bug link: https://bugs.openjdk.java.net/browse/JDK-8138983
>   open webrev: http://cr.openjdk.java.net/~gziemski/8138983_rev0
>
>
> hg_stat:
>
>   src/share/vm/classfile/compactHashtable.cpp                                              |    2 +-
>   src/share/vm/memory/metaspace.cpp                                                        |   30 --
>   src/share/vm/memory/metaspaceShared.hpp                                                  |   19 +-
>   src/share/vm/runtime/commandLineFlagConstraintList.cpp                                   |    2 +-
>   src/share/vm/runtime/commandLineFlagRangeList.cpp                                        |    2 +-
>   src/share/vm/runtime/globals.hpp                                                         |   63 +++++-
>   test/runtime/CommandLine/OptionsValidation/common/optionsvalidation/IntJVMOption.java    |    4 +-
>   test/runtime/CommandLine/OptionsValidation/common/optionsvalidation/JVMOptionsUtils.java |   81 +++++++
>   test/runtime/SharedArchiveFile/LimitSharedSizes.java                                     |  180 +++++++++-------
>   9 files changed, 242 insertions(+), 141 deletions(-)


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