This program was written to generate lots of requests against a web server. It's capable of running multiple clients (using threads), each sending multiple concurrent requests (using a select loop).
Getting help:
# pf -h
pf [-t <threads>] [-a <agents>] [-c <connections>] [-d <what>=<delay>] [-h] <host> <port>
Run 1000 request, in 10 threads, simulating 100 agents per thread.
# pf -t 10 -a 100 -c 10000 10.10.10.10 80
This software is licensed under GPLv2.