MP系列的高内存消耗 PA-5200 firewall
57741
Created On 02/28/19 22:54 PM - Last Modified 01/15/24 21:53 PM
Symptom
当运行命令 显示系统资源 时，在 CLI 管理平面上可以看到高物理内存消耗
示例：
PA-5220> > show system resources 2019-02-28 00:49:48.058 +0100 --- top top - 00:49:48 up 13 days, 9:01, 0 users, load average: 0.50, 0.29, 0.25 Tasks: 219 total, 1 running, 216 sleeping, 0 stopped, 2 zombie Cpu(s): 0.2%us, 0.2%sy, 0.0%ni, 99.5%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 32640996k total, 28688244k used, 3952752k free, 686940k buffers >>>>Note that 28688244k memory is used out of 32640996k Swap: 2007996k total, 0k used, 2007996k free, 24159980k cached
查看过程详细信息，没有消耗高内存的过程。
Environment
- PA-5200 系列 firewall
- PAN-OS 软件版本： 8.x 和 9.x
Cause
大多数内存由内核缓存。
Resolution
这是设计和预期的。
示例
：==
2019-02-28 00:49:48.058 +0100 --- top top - 00:49:48 up 13 days, 9:01, 0 users, load average: 0.50, 0.29, 0.25 Tasks: 219 total, 1 running, 216 sleeping, 0 stopped, 2 zombie Cpu(s): 0.2%us, 0.2%sy, 0.0%ni, 99.5%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 32640996k total, 28688244k used, 3952752k free, 686940k buffers Swap: 2007996k total, 0k used, 2007996k free, 24159980k cached >>>>Notice the memory cached by Kernel
同样，在不同的时间邮票，同样可以看到w母鸡运行显示系统资源命令：
Mem: 32640996k total, 32368624k used, 272372k free, 286620k buffers Swap: 2007996k total, 89740k used, 1918256k free, 26477036k cached
Mem: 32640996k total, 32444204k used, 196792k free, 287720k buffers Swap: 2007996k total, 89740k used, 1918256k free, 26509804k cached
Mem: 32640996k total, 32419920k used, 221076k free, 288616k buffers Swap: 2007996k total, 89736k used, 1918260k free, 26449000k cached
Mem: 32640996k total, 32426096k used, 214900k free, 290308k buffers Swap: 2007996k total, 89736k used, 1918260k free, 26487548k cached
Additional Information
3200 系列的交换内存 firewall 为 100% 利用