tsung - Man Page

A distributed multi-protocol load testing tool.


tsung [ -f configuration file ]  [ -l log dir ]  [ -m filename ]  [ -r command ]  [ -X directory ]  [ -w delay ]  [ -L lifetime ]  [ -s ]  [ -n ]  [ -k ]  [ -v ]  [ -6 ]  [ -h ]  [ start|stop|debug|status ]


tsung is a distributed load testing tool. It is protocol-independent and can currently be used to stress and benchmark HTTP, WebDAV, LDAP, PostgreSQL, MySQL and Jabber/XMPP servers.

It simulates user behaviour using an XML description file, reports many measurements in real time (statistics can be customized with transactions, and graphics generated using gnuplot).

For HTTP, it supports 1.0 and 1.1, has a proxy mode to record sessions, supports GET and POST methods, Cookies, and Basic WWW-authentication. It also has support for SSL.

Several config examples can be found in /usr/share/doc/tsung/examples/.


start tsung load testing


start tsung with an interactive erlang shell


stop tsung


print current status of a running instance of tsung (must be run on the controller host)


A manual should be available at /usr/share/doc/tsung/user_manual.html. It is also available online at



-f filename

specifies the configuration file to use. The default file name is ~/.tsung/tsung.xml. Use - for standard input

-l logdir

Specifies the log directory to use. The default log dir name is ~/.tsung/log/YYYYMMDD-HHMM/

-m monitoring_file

Specifies the monitoring log file name to use. The default log file name is tsung.log. Use - for standard output

-r command

Specifies an alternative to ssh (rsh for ex.) for starting a slave node on a remote host

-i id

set controller id (default is empty). Needed to start several controllers on the same host.


Use long names for erlang nodes (FQDN)


Enable erlang smp on client nodes


set maximum erlang processes per vm (default is 250000)

-X directory

add additional erlang load paths (multiple -X arguments allowed)

-L lifetime

SSL session lifetime in seconds (600 sec by default)

-w delay

warmup delay in seconds (1 sec by default)


Show version


disable web GUI


keep web GUI (and controller) alive after the test has finished


Use IPv6 for tsung internal communications


Show usage


Please reports bugs to the mailing list <tsung-users@process-one.net>, see


for archives. You can also use the issue tracker


See Also



Tsung is written by Nicolas Niclausse  <nicolas@niclux.org>. Contributors list is available in /usr/share/doc/tsung/CONTRIBUTORS

Referenced By


January 2004