tsung (1) - Linux Manuals

tsung: A distributed multi-protocol load testing tool.


tsung - 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 [at] process-one.net>, see


for archives. You can also use the issue tracker



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