: ab -n 5000 http://localhost:80/ This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0 Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Copyright 2006 The Apache Software Foundation, http://www.apache.org/ Benchmarking localhost (be patient) Completed 500 requests Completed 1000 requests Completed 1500 requests Completed 2000 requests Completed 2500 requests Completed 3000 requests Completed 3500 requests Completed 4000 requests Completed 4500 requests Finished 5000 requests Server Software: Apache Server Hostname: localhost Server Port: 80 Document Path: / Document Length: 325 bytes Concurrency Level: 1 Time taken for tests: 1.290006 seconds Complete requests: 5000 Failed requests: 0 Write errors: 0 Total transferred: 2830000 bytes HTML transferred: 1625000 bytes Requests per second: 3875.95 [#/sec] (mean) Time per request: 0.258 [ms] (mean) Time per request: 0.258 [ms] (mean, across all concurrent requests) Transfer rate: 2141.85 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.2 0 11 Processing: 0 0 0.4 0 28 Waiting: 0 0 0.0 0 1 Total: 0 0 0.5 0 28 Percentage of the requests served within a certain time (ms) 50% 0 66% 0 75% 0 80% 0 90% 0 95% 0 98% 0 99% 1 100% 28 (longest request)