Jmeter Load Testing

This is a basic jmeter project.

Run jmeter

Populate main.properties, then run jmeter in headless mode:

jmeter -nt main.jmx -q main.properties -fl out/report.csv

Optionally, generate a report dashboard after the load test completes:

jmeter -nt main.jmx -q main.properties -fl out/report.csv -eo reports/$(date +%s)

For more resource intensive testing, consider tweaking the JVM arguments used by jmeter. For example, prepend the following string to the commands above (after determining an appropriate memory allocation):

JVM_ARGS="-Xms4096m -Xmx4096m -server"

e.g.

JVM_ARGS="-Xms4096m -Xmx4096m -server" jmeter -nt main.jmx -q main.properties -fl out/report.csv -eo reports/$(date +%s)

Likewise, if you are developing your project using a server with limited resources, consider lowering those values, e.g:

JVM_ARGS="-Xms512m -Xmx512m -server"

Run jmeter (in edit mode)

Populate main.properties, then run jmeter in GUI mode:

jmeter -t main.jmx -q main.properties

Dashboard

If you want to create a dashboard from an existing report:

jmeter -g ./out/report.csv -o reports/$(date +%s)

Note: the default granularity is 60s which effects some graphs; this can be changed by editing user.properties (or including it in your imported properties file):

jmeter.reportgenerator.overall_granularity=1000

ulimits

When running larger tests, update the limits file (/etc/security/limits.conf) to include the following and then restart the server:

* soft nofile 16384
* hard nofile 16384

Jmeter logging

Consider reducing the jmeter logs by editing bin/log4j2.xml.

Decrease default log verbosity

Change the default log level to warn by changing this:

<Root level="info">

to this:

<Root level="warn">

Increase specific loggers verbosity

Then set specific loggers to info, for example:

<Logger name="org.apache.jmeter.JMeter" level="info" />
<Logger name="org.apache.jmeter.threads.ThreadGroup" level="info" />
<Logger name="org.apache.jmeter.reporters.Summariser" level="info" />

Links

• https://jmeter.apache.org/