RFR(s): 8152176: Big ParGCCardsPerStrideChunk values can cause overflow for CMS GC (original) (raw)

sangheon sangheon.kim at oracle.com
Mon Mar 28 22:50:48 UTC 2016


Hi all,

Could I have some reviews for this change?

As very large value of ParGCCardsPerStrideChunk flag would result in an overflow, we need a constraint function after memory initialization. And the function will check the flag to be less than of equal to the size of card table and not to make an overflow with other stride factors(ParallelGCThreads and ParGCStridesPerThread).

CR: https://bugs.openjdk.java.net/browse/JDK-8152176 Webrev: http://cr.openjdk.java.net/~sangheki/8152176/webrev.00 Testing: JPRT, all runtime/commandline JTREG tests on all platforms

Thanks, Sangheon



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