Testing Varnish Web Server Load Using Apache Benchmark Tool
In this video will consist in benchmarking web server and Varnish with the ab tool and compare the response times and the CPU load in each case. In this particular example we will use the CentOS 7 server, but you can use any distribution and obtain similar results. Watch the load average in top and the Requests per second line in the output of ab.
Read More on how to install Varnish Cache in CentOS, RHEL, Fedora, Debian and Ubuntu
http://www.tecmint.com/install-varnis...