RFR (S) 8073705: more performance issues in class redefinition (original) (raw)
serguei.spitsyn at oracle.com serguei.spitsyn at oracle.com
Fri Apr 10 20:29:35 UTC 2015
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Hi Coleen and Dan,
This is the second class redefinition scalability/optimization fix that is in my queue to push into 9 and 8u60.
The approach is similar to the first one but much smaller. For convenience, these are the links to the first scalability fix: Bug report: https://bugs.openjdk.java.net/browse/JDK-8073705 Open webrev: http://cr.openjdk.java.net/~sspitsyn/webrevs/2015/hotspot/8046246-JVMTI-redefscale.2/
Please, let me know if you have any chance to review this. This is the last one that is waiting for your attention! :)
Thanks, Serguei
On 3/26/15 7:38 PM, serguei.spitsyn at oracle.com wrote:
Please, review the fix for: https://bugs.openjdk.java.net/browse/JDK-8073705
Open hotspot webrev: http://cr.openjdk.java.net/~sspitsyn/webrevs/2015/hotspot/8073705-JVMTI-redefscale2.1/
Summary: This is the 2-nd round of performance/calability fixes in class redefinition. This time, the two remaining issues that were left alone in the first round fix: - optimized ConstantPoolCache::adjustmethodentries() is used for previous versions - the MemberNameTable::adjustmethodentries() has been optimized too - some cleanup Testing: In progress: nsk redefine classes tests, JTREG java/lang/instrument, com/sun/jdi Thanks, Serguei
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