Heap Configuration: //堆内存初始化配置
MinHeapFreeRatio = 40 //堆最小空闲比率
MaxHeapFreeRatio = 70 //堆最大空闲比率
MaxHeapSize = 2147483648 (2048.0MB) //堆最大空间
NewSize = 715784192 (682.625MB) //堆新生代的默认大小
MaxNewSize = 715784192 (682.625MB) //堆新生代最大大小
OldSize = 357957632 (341.375MB) //老年代大小
NewRatio