The system under test, where the proxy server runs, is a 500MHz Digital Personal Workstation (Alpha 21164, 128MB RAM, SPECint95 = 15.7), running our modified version of Digital UNIX V4.0D. The client processes run on four identical 166Mhz Pentium Pro machines (64MB RAM, FreeBSD 2.2.6). The Web server program runs on a 300 MHz Pentium II (128MB RAM, FreeBSD 2.2.6).
A switched full-duplex 100 Mbit/sec Fast Ethernet connects all machines. The proxy server machine has two network interfaces, one for client traffic and one for Web-server traffic.