ab -k -n 100 http://b/
This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/
###With debug 0 , and not caching
Server Software: Apache/2.2.21
Server Hostname: b
Server Port: 80
Document Path: /
Document Length: 61559 bytes
Concurrency Level: 1
Time taken for tests: 86.850 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Keep-Alive requests: 100
Total transferred: 6192492 bytes
HTML transferred: 6155900 bytes
Requests per second: 1.15 [#/sec] (mean)
Time per request: 868.500 [ms] (mean)
Time per request: 868.500 [ms] (mean, across all concurrent requests)
Transfer rate: 69.63 [Kbytes/sec] received
###With debug 2 , and not caching
Concurrency Level: 1
Time taken for tests: 91.903 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Keep-Alive requests: 100
Total transferred: 10097892 bytes
HTML transferred: 10061200 bytes
Requests per second: 1.09 [#/sec] (mean)
Time per request: 919.033 [ms] (mean)
Time per request: 919.033 [ms] (mean, across all concurrent requests)
Transfer rate: 107.30 [Kbytes/sec] received
###With debug 0 , and caching
Concurrency Level: 1
Time taken for tests: 8.217 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Keep-Alive requests: 1
Total transferred: 6175671 bytes
HTML transferred: 6155900 bytes
Requests per second: 12.17 [#/sec] (mean)
Time per request: 82.175 [ms] (mean)
Time per request: 82.175 [ms] (mean, across all concurrent requests)
Transfer rate: 733.92 [Kbytes/sec] received