- Web Server Comparisons ...factoring out I/O, the primary determinant to server performance is the concurrency strategy. -- JAWS: Understanding High Performance Web Systems Some comparisons between various web servers. We look at features, sizes, and performance. The headers in the table are links to explanatory notes below. Bright green entries indicate something unusually good, and red entries ...www.acme.com/software/thttpd/benchmarks.html