This benchmark is from "malloc() Performance in a Multithreaded Linux Environment", available from
<http://www.citi.umich.edu/projects/citi-netscape/reports/malloc.htm>

Try the following parameters, where P = 1 and then the number of
processors on your system:

./linux-scalability 512 10000000 P
./linux-scalability-hoard 512 10000000 P
