[root@pad:~] cat /etc/centos-release
CentOS release 6.6 (Final)
[root@pad:~] uname -a
Linux pad.xxxxxxxxx.com 2.6.32-042stab108.2 #1 SMP Tue May 12 18:07:50 MSK 2015 x86_64 x86_64 x86_64 GNU/Linux
[root@pad:~] vzlist
      CTID      NPROC STATUS    IP_ADDR         HOSTNAME
       114         42 running   192.168.0.14    u12.xxxxxxxxx.com
       120         21 running   192.168.0.20    u14.xxxxxxxxx.com
[root@pad:~] free -m
             total       used       free     shared    buffers     cached
Mem:          3755       2289       1466         12        235       1682
-/+ buffers/cache:        370       3385
Swap:         2055          0       2055
[root@pad:~] vzctl enter 120
entered into CT 120
[root@u14:/] free -m
             total       used       free     shared    buffers     cached
Mem:           512        298        213         74          0        292
-/+ buffers/cache:          6        505
Swap:          256          0        256
[root@u14:/] ofree
             total       used       free     shared     cached
Mem:           512        299        213         74        269
-cache:                    30        482
Swap:          256          0        256
[root@u14:/] exit
logout
exited from CT 120