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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