Consider that the standard deviation of your measurements is significantly greater than the mean. This can come from a number of things, but most likely it means that somethign went wrong.
Sure. I think it was missing / at the command line which triggered 301 redirect. (And the requests were too fast) This looks better (and more interesting) i think: Dom0: ab2 -c 20 -n 100 http://192.168.0.106/drupal-5.1/ Concurrency Level: 20 Time taken for tests: 31.322934 seconds Complete requests: 100 Failed requests: 0 Write errors: 0 Total transferred: 1500096 bytes HTML transferred: 1452424 bytes Requests per second: 3.19 [#/sec] (mean) Time per request: 6264.587 [ms] (mean) Time per request: 313.229 [ms] (mean, across all concurrent requests) Transfer rate: 46.74 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 2.4 0 14 Processing: 268 2977 1943.3 2313 11434 Waiting: 253 2961 1942.5 2298 11418 Total: 268 2978 1943.2 2313 11434 Virtualized: ab2 -c 20 -n 100 http://192.168.0.111/drupal-5.1/ Concurrency Level: 20 Time taken for tests: 32.128700 seconds Complete requests: 100 Failed requests: 0 Write errors: 0 Total transferred: 1504600 bytes HTML transferred: 1457400 bytes Requests per second: 3.11 [#/sec] (mean) Time per request: 6425.740 [ms] (mean) Time per request: 321.287 [ms] (mean, across all concurrent requests) Transfer rate: 45.72 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 17 27.5 1 91 Processing: 1657 4462 4927.8 3316 32057 Waiting: 1622 4378 4914.4 3234 31932 Total: 1718 4480 4924.3 3343 32058