Recently, I've been doing a lot of benchmarking with Apache to compare different OSes and platforms. I did a stock install of Ubuntu 7.04 Server w/ Apache2 and PHP5. To do the test, I used ab to fetch the following document: <html> <head> <title>PHP Web Server Test</title> </head> <body> <?php phpinfo(); ?> </body> </html> I ran ab in a loop 12 times with 10,000 connections and a concurrency of 10. Then I threw out the highest result and the lowest result and averaged the remaining values. Both PHP4 (v 4.4.7) and PHP5 (v 5.2.3) were built as Apache modules, and I simply changed Apache's config file to swap modules. The results were somewhat surprising to me: on average, PHP4 significantly outperformed PHP5. Over our LAN PHP5 handled roughly 1,200 requests / sec while PHP4 handled over 1,800 requests / sec. Since everything I have heard/read is that PHP5 is much faster than PHP4, I expected the opposite to be true, but the numbers are what they are. Also PHP on Apache1 was much faster than on Apache2. The only difference I can figure is that PHP5 was the packaged version that comes with Ubuntu and I had to compile PHP4 from source since there is no package for it in Feisty. But I wouldn't expect a 50% increase as a result of that. Any thoughts on this? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php