jstat查看虚拟机统计信息 · java性能调优

### * 类装载 > jstat -class 3170 //类加载信息 ![](https://img.kancloud.cn/57/29/572981c7e5d46bebc7fd2fde04b2be9b_1662x790.png) ### 垃圾收集 > -gc,-gcutil,-gccause,-gcnew,gcold ![](https://img.kancloud.cn/22/06/2206e15cd32d279a7e3141415367ff98_1740x658.png) ![](https://img.kancloud.cn/ee/23/ee233f90cefa383fd4c019f3a3132229_1550x800.png) ![](https://img.kancloud.cn/1d/d5/1dd590e31bd1b7689f4a3190607242cb_1394x974.png) ### JIT编译 > -compiler ,-printcompilation