server software: apache/2.0.16 server hostname: localhost server port: 80 document path: /myapp.php document length: 1311 bytes concurrency level: 50 time taken for tests: 8.794 seconds complete requests: 1000 failed requests: 0 total transferred: 1754000 bytes html transferred: 1311000 bytes requests per second: 113.71 transfer rate: 199.45 kb/s received connection times (ms) min avg max connect: 0 0 5 processing: 111 427 550 total: 111 427 555 myapp.php每秒钟可以处理的请求数为113.71个。将请求数增加,看看服务器能否处理更大的压力。你也需要调节apache的maxclients,threadsperchild,maxthreadsperchild等参数,基于你的httpd.conf中的mpm模块选择。