[ec2-user@jenkins_slave2 ~]$ uname -a
Linux jenkins_slave 3.10.35-43.137.amzn1.x86_64 #1 SMP Wed Apr 2 09:36:59 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

[ec2-user@jenkins_slave2 ~]$ free -m
              total      used       free       shared   buffers         cached
Mem:          7228       5688       1539          0         72           3824
-/+ buffers/cache:     1791       5436
Swap:        16382       163       16219