gncli -uroot -e "show engine express status\G"
显示如下（黄色高亮的为关键信息及其说明）：
*************************** 1. mw ***************************
Type: memory
Name: memory statistic
Status:-------------------------------------------------------------------
| MALLOC: |
1109394928 ( 1058.0 MiB) Bytes in use by |
||
| application |
//gbased占用内存 |
||
| MALLOC: |
+ |
0 ( |
0.0 MiB) Bytes in page heap freelist |
| MALLOC: |
+ |
15619840 ( |
14.9 MiB) Bytes in central cache freelist |
| MALLOC: |
+ |
49152 ( |
0.0 MiB) Bytes in transfer cache freelist |
| MALLOC: |
+ |
37438224 ( |
35.7 MiB) Bytes in thread cache freelists |
| MALLOC: |
+ |
7385248 ( |
7.0 MiB) Bytes in malloc metadata |
| MALLOC: |
— |
||
| MALLOC: |
= |
1169887392 ( 1115.7 MiB) Actual memory used (physical + |
|
| swap) |
|||
| MALLOC: |
+ |
1859616768 ( 1773.5 MiB) Bytes released to OS (aka unmapped) |
|
| MALLOC: |
— |
||
| MALLOC: |
= |
3029504160 ( 2889.2 MiB) Virtual address space used |
|
| MALLOC: |
|||
| MALLOC: |
22464 |
Spans in use |
|
| MALLOC: |
607 |
Thread heaps in use |
|
| MALLOC: |
8192 |
||