2. Test the firewall. Perform throughput tests similar to Step #1. For session tests, use the techniques you would employ for testing Web servers. It's important to gauge sessions for stateful packet-filter firewalls, because they maintain a table of all active connections.
3. Test caching devices. Make sure you use varied content, including HTML, graphics and Java files, and not the same page again and again. Add a few cache misses, and don't forget that some dynamic pages can't be cached.
4. Test the Web servers and load balancers. Check the successful hits per second and download times. Turn on compression and see if more pages are served.
5. Test SSL encryption speeds, if necessary. Whether you're running SSL in software or off-loading it to an accelerator card, test the encrypted Web traffic. Even with off-loaded SSL, the server has more traffic floating around its PCI bus than it does without any encryption.
6. Test the disk-access systems. Pull site data from a mounted network drive and test disk performance where the log files are written.
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