On Sun, 16 Nov 2003, Marc Slemko wrote: > 3. Threading issues. This is a red herring; threading issues can be a > reason why moving to 2.0 wouldn't give someone enough of a reason to make > it worthwhile, but they do not block anyone moving to 2.0. if they > don't want to use threads, they don't have to use threads.
I have always had the feeling that Apache2+prefork was a bit of a second-class citizen. I have tested it periodically over the past 2 years and it has never gotten anywhere close to Apache1 in performance. I ran another test of 1.3.29 vs 2.0.48-prefork just now just to make sure I wasn't blowing pure smoke here and here is what I got: Apache-1.3.29 Document Path: /bench_main.php Document Length: 7832 bytes Concurrency Level: 5 Time taken for tests: 2.038 seconds Complete requests: 500 Failed requests: 0 Broken pipe errors: 0 Total transferred: 4071500 bytes HTML transferred: 3916000 bytes Requests per second: 245.34 [#/sec] (mean) Time per request: 20.38 [ms] (mean) Time per request: 4.08 [ms] (mean, across all concurrent requests) Transfer rate: 1997.79 [Kbytes/sec] received Apache-2.0.48 Concurrency Level: 5 Time taken for tests: 3.367 seconds Complete requests: 500 Failed requests: 0 Broken pipe errors: 0 Total transferred: 4028508 bytes HTML transferred: 3931622 bytes Requests per second: 148.50 [#/sec] (mean) Time per request: 33.67 [ms] (mean) Time per request: 6.73 [ms] (mean, across all concurrent requests) Transfer rate: 1196.47 [Kbytes/sec] received I did try more requests, different concurrency levels and I tweaked the config of both to be as close as I could make them. Looking at the total bytes tranferred, Apache2 is sending less mostly because I forgot to remove the p3p module from my Apache1 setup which adds a big long nasty p3p header to every response, but even with that Apache1 was way faster. The benchmark itself is a standard little PHP thing I use to test stuff, so it may be that our Apache2Handler for PHP is crap and we aren't smart enough to write a decent Apache2 module. -Rasmus
