heap是4g,oldGen是2g,
jvm option:-XX:CMSInitiatingOccupancyFraction=80 -XX:+UseCMSInitiatingOccupancyOnly 复制
jvm option:-XX:CMSInitiatingOccupancyFraction=80 -XX:+UseCMSInitiatingOccupancyOnly
在Eden占40%左右就开始频繁cms gc,但是gc效果并不明显,oldGen一直占用70%,怀疑是悲观策略导致的,但是为什么Eden占用40%以上才会频繁gc?