RFR JDK-7092821 "java.security.Provider.getService() is synchronized and became scalability bottleneck"

Valerie Peng valerie.peng at oracle.com
Wed Nov 21 18:05:53 UTC 2018


Hi,

Can someone help reviewing this fix?

Besides changing the Provider class to use ConcurrentHashMap in order to 
reduce the lock contention on Provider.getService() calls, I also 
changed the security providers in java.base module to register through 
putService(...) calls. Performance is manually verified and mach5 run is 
clean.

Bug: https://bugs.openjdk.java.net/browse/JDK-7092821
Webrev: http://cr.openjdk.java.net/~valeriep/7092821/webrev.00/

Thanks,
Valerie








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