http-get-bench: parallel HTTP GET bencharmks made easy

This is a simple tool to perform parallel HTTP GET test and record response times for every call and for the overall test.

Build and install

To build and install http-get-bench:

$ make
$ sudo make install

This will run tests and compile the binary install it under /usr/local/bin on your system.

Usage

At least an URL must be provided to begin the benchmark. The following example will run a series of 10 parallel HTTP GET calls on www.example.com.

$ http-get-bench --url www.example.com -n 10

The expected output will be similar to this:

Performing host DNS lookup...	Done
Beginning benchmark...

| Attempt: 9	| Url: http://www.example.com	| Status: 200 OK	| Time: 188733434 |
| Attempt: 5	| Url: http://www.example.com	| Status: 200 OK	| Time: 191321751 |
| Attempt: 10	| Url: http://www.example.com	| Status: 200 OK	| Time: 200889381 |
| Attempt: 4	| Url: http://www.example.com	| Status: 200 OK	| Time: 201985038 |
| Attempt: 1	| Url: http://www.example.com	| Status: 200 OK	| Time: 203551875 |
| Attempt: 3	| Url: http://www.example.com	| Status: 200 OK	| Time: 204738982 |
| Attempt: 7	| Url: http://www.example.com	| Status: 200 OK	| Time: 217022760 |
| Attempt: 2	| Url: http://www.example.com	| Status: 200 OK	| Time: 228276499 |
| Attempt: 6	| Url: http://www.example.com	| Status: 200 OK	| Time: 238500664 |
| Attempt: 8	| Url: http://www.example.com	| Status: 200 OK	| Time: 276821083 |

Benchmark completed.
Total number of requests:			10
Total elapsed time in nanoseconds:		277114982
Average time in nanoseconds:			215184146

The tool will beging with a DNS lookup test on the provided hostname. After the test the goroutines running the http.Get() methods will be spawned and the resultds recorded into a buffered channel. The order of attempts varies upon the response time.

If needed, it is possibile to print the html output with the -p flag:

$  http-get-bench --url www.example.com -n 10 -p