G1GCã®ã¤ã‹ã„ã©ã“ã‚メモ - nekop's blog
以下ã®ç’°å¢ƒã¨ãƒ†ã‚¹ãƒˆã§CMSã¨G1GCを比較ã—ã¦ã¿ãŸã€‚ã‹ãªã‚Šæ€¥ãŽã§ã‚„ã£ãŸã®ã§é–“é•ã£ã¦ã„ã‚‹å¯èƒ½æ€§ãŒå¤šå°‘ã‚る。 16 cores, 32GB mem -Xms24g -Xmx24g 8 instances Infinispan 6.0.3.Final DIST cache, put 4GB data (1KB entry * 2M, 2GB data with one backup copy, 2GB * 2 = 4GB) CMS: -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=30 G1GC: -XX:+UseG1GC -XX:G1HeapRegionSize=16m -XX:InitiatingHeapOccupancyPercent=30 $ java -XX:+UseG1GC -XX:+PrintFlagsFinal
Java HotSpot Garbage Collection
Introduction The Garbage-First (G1) garbage collector is fully supported in Oracle JDK 7 update 4 and later releases. The G1 collector is a server-style garbage collector, targeted for multi-processor machines with large memories. It meets garbage collection (GC) pause time goals with high probability, while achieving high throughput. Whole-heap operations, such as global marking, are performed co
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