所以我一直试图使用apache的基准性能，但我很难理解为什么我得到这些结果。 仅供参考，它是一个使用Zend Framework，mySQL数据库的PHP应用程序，大多数是默认的httpd.conf设置。 如果我对1个并发用户和10个请求进行简单的testing，似乎只需要10个并发用户和10个请求就可以运行，就像它一次只运行一个请求一样。 我使用“top”来监视CPU和RAM的使用情况，并发级别为10，它徘徊在50％左右，RAM没有交换，我仍然有大约400MB的空闲空间。 我也检查了httpd.conf文件，max客户端是默认的256。
Concurrency Level: 1 Time taken for tests: 11.594 seconds Complete requests: 10 Failed requests: 0 Write errors: 0 Keep-Alive requests: 0 Total transferred: 738770 bytes HTML transferred: 735680 bytes Requests per second: 0.86 [#/sec] (mean) Time per request: 1159.353 [ms] (mean) Time per request: 1159.353 [ms] (mean, across all concurrent requests) Transfer rate: 62.23 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.1 0 0 Processing: 1126 1159 21.7 1168 1190 Waiting: 1094 1128 22.7 1138 1160 Total: 1126 1159 21.7 1168 1190 Percentage of the requests served within a certain time (ms) 50% 1168 66% 1171 75% 1172 80% 1178 90% 1190 95% 1190 98% 1190 99% 1190 100% 1190 (longest request) Concurrency Level: 10 Time taken for tests: 11.409 seconds Complete requests: 10 Failed requests: 0 Write errors: 0 Keep-Alive requests: 0 Total transferred: 738770 bytes HTML transferred: 735680 bytes Requests per second: 0.88 [#/sec] (mean) Time per request: 11408.835 [ms] (mean) Time per request: 1140.883 [ms] (mean, across all concurrent requests) Transfer rate: 63.24 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 2 18 9.8 16 30 Processing: 1429 6316 3330.1 6821 11399 Waiting: 1388 6270 3330.7 6761 11353 Total: 1445 6334 3331.7 6823 11408 Percentage of the requests served within a certain time (ms) 50% 6823 66% 7877 75% 9069 80% 10185 90% 11408 95% 11408 98% 11408 99% 11408 100% 11408 (longest request)