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二、命令列表

2.1 jvm相关命令

2.1.11 memory（查看 JVM 内存信息）

基本用法：
memory

举例1：查看 JVM 内存信息

[arthas@11200]$ memory
Memory                                                                                             used                              total                            max                              usage                            
heap                                                                                               51M                               314M                             3433M                            1.51%                            
ps_eden_space                                                                                      16M                               158M                             1260M                            1.30%                            
ps_survivor_space                                                                                  8M                                9M                               9M                               99.93%                           
ps_old_gen                                                                                         26M                               147M                             2575M                            1.03%                            
nonheap                                                                                            68M                               73M                              -1                               93.64%                           
code_cache                                                                                         14M                               15M                              240M                             6.25%                            
metaspace                                                                                          47M                               51M                              -1                               92.62%                           
compressed_class_space                                                                             6M                                6M                               1024M                            0.59%                            
direct                                                                                             0K                                0K                               -                                0.00%                            
mapped                                                                                             0K                                0K                               -                                0.00%                            
[arthas@11200]$