Why memory shows high, and goes low after restart of PSsense

[nearones]

Dear Expert,
Why does my memory usage shows high and goes down after pfsense is been restarted, can u help me out regarding my configs

Below is my configs for Cache Management
Hard disk cache size : 4096 MB
Hard disk cache system : ufs (please explain what this means)
Memory cache size : 512 MB
Minimum object size : 0
Maximum object size : 1024
Maximum object size in RAM : 10240
Level 1 subdirectories : 16
Memory replacement policy : Heap GDSF (please explain what this means)
Cache replacement policy : Heap LFUDA (please explain what this means)
For Traffic Management
Maximum download size : 10240
Maximum upload size : 10240
Overall bandwidth throttling : 0
Per-host throttling : 0
Finish transfer if less than x KB remaining : 0
Abort transfer if more than x KB remaining : 0
Finish transfer if more than x % finished : 0

Please Guide on above config are the required any corrections

[marcelloc]

Restart squid instead of reboot machine.

Try to reduce squid memory cache.

[nearones]

@marcelloc:

Restart squid instead of reboot machine.

Try to reduce squid memory cache.

Thanks for ur reply, my server is for 1GB RAM and I had change to 256MB. Can you also look into the other setting what i had mentioned, have i configured correctly?

Thanks again.
Prashant Chauhan

[marcelloc]

Other options are fine.

The best values will depend on traffic and firewall hardware.

[nearones]

@marcelloc:

Other options are fine.

The best values will depend on traffic and firewall hardware.

Thanks for ur help

[Cry Havok]

Memory usage should be high - if it isn't then it is being wasted. Any modern OS will maximise memory use, even if it is just for buffers and caches.

[jimp]

@Cry:

Memory usage should be high - if it isn't then it is being wasted. Any modern OS will maximise memory use, even if it is just for buffers and caches.

^ This.

Free RAM is wasted RAM. If it isn't in active use it can be used for caching and such. As the system is up it will tune the requirements in a bit. You can see more detail about the breakdown by watching the 'top' output or viewing Diagnostics > System Activity.