This is ApacheBench, Version 2.0.41-dev <$Revision: 1.1 $> apache-2.0 Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Copyright (c) 1998-2002 The Apache Software Foundation, http://www.apache.org/ Benchmarking localhost (be patient) Server Software: Apache/2.0.54 Server Hostname: localhost Server Port: 80 Document Path: /~harryf/utf8/tests/bench/substr.php?engine=mbstring Document Length: 5 bytes Concurrency Level: 1 Time taken for tests: 18.344252 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 228000 bytes HTML transferred: 5000 bytes Requests per second: 54.51 [#/sec] (mean) Time per request: 18.344 [ms] (mean) Time per request: 18.344 [ms] (mean, across all concurrent requests) Transfer rate: 12.10 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.0 0 0 Processing: 14 17 9.8 15 53 Waiting: 0 17 9.9 14 53 Total: 14 17 9.8 15 53 Percentage of the requests served within a certain time (ms) 50% 15 66% 15 75% 15 80% 15 90% 22 95% 48 98% 50 99% 50 100% 53 (longest request)