Cisco ASR 9010 - Application Memory

[aridy]

Hi,

I have a Cisco ASR 9010 Router and have a question regarding its memory:

When I use show memory summary command, I see the following:

RP/0/RSP0/CPU0:ios#show memory summary
Fri Jul 10 16:18:09.398 GMT+2

node: node0_RSP0_CPU0
------------------------------------------------------------------

Physical Memory: 11147M total (4571M available)
Application Memory : 11147M (4333M available)
Image: 4M (bootram: 0M)
Reserved: 0M, IOMem: 0M, flashfsys: 0M
Total shared window: 425M

Can you help me by telling what exactly is the application memory, because I see it continuously drooping.

What makes it decrease generally? 

I have another ASR 9010 router and it has physical and application memory the same, meanwhile this on has different values and the application one continues drooping.

Thanks, 

Aridy

[marce1000]

 Ref : https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k_r4-0/system_management/command/reference/yr40asr9k_chapter10.html

Table 9  show memory summary Field Descriptions

Field	Description
Physical Memory	Available physical memory on the router.
Application Memory	Current memory usage of all the processes on the router.