Apache Benchmark

$ sudo apt-get install apache2-utils

utility programs for webservers

Provides some add-on programs useful for any webserver. These include:

•  ab (Apache benchmark tool)
•  logresolve (Resolve IP addresses to hostname in logfiles)
•  htpasswd (Manipulate basic authentication files)
•  htdigest (Manipulate digest authentication files)
•  dbmmanage (Manipulate basic authentication files in DBM format, using perl)
•  htdbm (Manipulate basic authentication files in DBM format, using APR)
•  rotatelogs (Periodically stop writing to a logfile and open a new one)
•  split-logfile (Split a single log including multiple vhosts)
•  checkgid (Checks whether the caller can setgid to the specified group)
•  check_forensic (Extract mod_log_forensic output from Apache log files)

ab can be used to look at performance issued of node.js