Web Polygraph

Web Polygraph is a freely available performance testing tool for caching proxies, origin server accelerators, L4/7 switches, content filters, and other Web intermediaries. Polygraph's features include:

• high-performance HTTP clients and servers
• realistic HTTP, FTP and SSL traffic generation
• HTTP and SOCKS5 proxy support, with chaining
• HTTP Basic, NTLM, Negotiate, and Kerberos proxy authentication
• LDAP-friendly generation of user credentials
• flexible content simulation
• ready-to-use standard workloads for benchmarking
• powerful domain-specific configuration language
• portable open-source implementation
• friendly commercial support