Memory Usage High - But Server is Idle

[HappymanUK]

I cannot understand some of the stats showing on a new machine.

It is showing that RAM being used is approx 950MB (out of 1GB), although there is nothing installed on this server yet (apart from cpanel), and nothing is running - The CPU is showing as 100% idle.

Does anyone know why this is happening ??

Thanks
Daniel


Tasks: 115 total, 1 running, 114 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0% us, 0.2% sy, 0.0% ni, 99.8% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 1022928k total, 963068k used, 59860k free, 174352k buffers
Swap: 2040212k total, 4k used, 2040208k free, 466544k cached

 

[krava]

Run:

#ps -auxcfSm

in shell and check what processes eat RAM. Anyway, I think the problem could be caused by kernel.

 

[krava]

Additionally, there could be some hidden processes. Check the server using rkhunter or chkrootkit:
http://www.rootkit.nl/
http://www.chkrootkit.org/

 

[HappymanUK]

Run:

#ps -auxcfSm

in shell and check what processes eat RAM. Anyway, I think the problem could be caused by kernel.

That command didn't seem to work

Daniel

 

[krava]

The command:

#ps -auxcfSm

works fine on CentOS. Probably another Linux version is installed on your box or you use BSD. Check man pages of "ps". Anyway, I believe you can check what process takes RAM using the PS command.