“ab” – benchmark utility is built into Apache. A popular alternative to “ab” which can also test lists of urls – meaning benchmark your whole app – is siege - http://www.joedog.org/siege-home/
Here is the report it gives for my localhost project api test.
$ ab -n 100 -c 10 http://localhost:8888/ITEHealthAdmin/web/app_dev.php/api/demonstrationentity1s/1.json
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/
Benchmarking localhost (be patient).....done
Server Software: Apache/2.2.25
Server Hostname: localhost
Server Port: 8888
Document Path: /ITEHealthAdmin/web/app_dev.php/api/demonstrationentity1s/1.json
Document Length: 88 bytes
Concurrency Level: 10
Time taken for tests: 15.564 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 46100 bytes
HTML transferred: 8800 bytes
Requests per second: 6.43 [#/sec] (mean)
Time per request: 1556.410 [ms] (mean)
Time per request: 155.641 [ms] (mean, across all concurrent requests)
Transfer rate: 2.89 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.4 0 2
Processing: 1146 1538 87.1 1541 1806
Waiting: 1104 1409 69.9 1408 1700
Total: 1146 1538 87.2 1541 1807
Percentage of the requests served within a certain time (ms)
50% 1541
66% 1564
75% 1587
80% 1592
90% 1628
95% 1659
98% 1725
99% 1807
100% 1807 (longest request)
