Well, its not about any special host or operating system, just about the pure performance benchmarks measured for distinct setups of software on some kind of hardware.

Setups:


I was testing with Siege the server on localhost with permissions.

siege -c 10 -t 2m http://tiki19/tiki-index.php
Results with Lighthttpd and PHP5-FCGI
<br /> 700Mhz, 384MB RAM, udma2 ides ext3 fs<br /> Transactions: 103 hits<br /> Availability: 100.00 %<br /> Elapsed time: 120.26 secs<br /> Data transferred: 2164266 bytes<br /> Response time: 11.02 secs<br /> Transaction rate: 0.86 trans/sec<br /> Throughput: 17996.56 bytes/sec<br /> Concurrency: 9.43<br /> Successful transactions: 103<br /> Failed transactions: 0<br /> Longest transaction: 14.61<br /> Shortest transaction: 1.91<br />

Results with Apache2 PHP5
<br /> 700Mhz, 384MB RAM, udma2 ides ext3 fs<br /> Transactions: 69 hits<br /> Availability: 100.00 %<br /> Elapsed time: 119.96 secs<br /> Data transferred: 1449585 bytes<br /> Response time: 15.70 secs<br /> Transaction rate: 0.58 trans/sec<br /> Throughput: 12083.90 bytes/sec<br /> Concurrency: 9.03<br /> Successful transactions: 69<br /> Failed transactions: 0<br /> Longest transaction: 31.38<br /> Shortest transaction: 4.97<br />


No php caching was used, cpu load was much lower with phpfcgi, running a whole X desktop with Firefox and Evolution and the like in the background...

For some more benchmarks on Lighthttpd go here.