Some simple benchmarks for evaluating Linux scalability on many-cores.

Create numerous directories under /tmp/dir.

Create a socket listener on each ethernet interface, and connect to them repeatedly.

Create multiple threads which touch a large mmaped file one by one.

Ping-pong test for semephore scalabity on many-cores.

Modified version of lockstat tool in lockmeter (http://oss.sgi.com/projects/lockmeter/).