Stress Testing Tool (APACHE)

There is a simple website stress testing tool AB .exe in Apache, which is easy to use.
My most common commands are as follows:
C: \ apache2.2 \ bin \ AB-N % 1-C % 2 http: // 127.0.0.1/
-N: the total number of online executions.
-C: Maximum number of concurrent connections (concurrency)
% 1 and % 2 bring the value to be set. The complete example is as follows:
Ab-n 100-C 30 http: // 127.0.0.1/
Set the number of concurrent connections to 30 and execute 100 online requests.
Run c: \ apache2.2 \ bin \ AB to view the complete parameter description.
Reference URL:
Parameters: http://blog.longwin.com.tw/archives/000513.html
Result Description: http://calos-tw.blogspot.com/2010/03/apache.html