locust --help

Usage: locust [OPTIONS] [UserClass ...]

Common options:
  -h, --help            show this help message and exit
  -f LOCUSTFILE, --locustfile LOCUSTFILE
                        Python module to import, e.g. '../other_test.py'. Either a .py file, multiple comma-separated .py files or a package directory. Defaults to 'locustfile'.
  --config CONFIG       Config file path
  -H HOST, --host HOST  Host to load test in the following format: http://10.21.32.33
  -u NUM_USERS, --users NUM_USERS
                        Peak number of concurrent Locust users. Primarily used together with --headless or --autostart. Can be changed during a test by keyboard inputs w, W (spawn 1, 10 users) and s, S (stop 1,
                        10 users)
  -r SPAWN_RATE, --spawn-rate SPAWN_RATE
                        Rate to spawn users at (users per second). Primarily used together with --headless or --autostart
  -t RUN_TIME, --run-time RUN_TIME
                        Stop after the specified amount of time, e.g. (300s, 20m, 3h, 1h30m, etc.). Only used together with --headless or --autostart. Defaults to run forever.
  -l, --list            Show list of possible User classes and exit

Web UI options:
  --web-host WEB_HOST   Host to bind the web interface to. Defaults to '*' (all interfaces)
  --web-port WEB_PORT, -P WEB_PORT
                        Port on which to run web host
  --headless            Disable the web interface, and start the test immediately. Use -u and -t to control user count and run time
  --autostart           Starts the test immediately (like --headless, but without disabling the web UI)
  --autoquit AUTOQUIT   Quits Locust entirely, X seconds after the run is finished. Only used together with --autostart. The default is to keep Locust running until you shut it down using CTRL+C
  --web-auth WEB_AUTH   Turn on Basic Auth for the web interface. Should be supplied in the following format: username:password
  --tls-cert TLS_CERT   Optional path to TLS certificate to use to serve over HTTPS
  --tls-key TLS_KEY     Optional path to TLS private key to use to serve over HTTPS
  --class-picker        Enable select boxes in the web interface to choose from all available User classes and Shape classes

Master options:
  Options for running a Locust Master node when running Locust distributed. A Master node need Worker nodes that connect to it before it can run load tests.

  --master              Set locust to run in distributed mode with this process as master
  --master-bind-host MASTER_BIND_HOST
                        Interfaces (hostname, ip) that locust master should bind to. Only used when running with --master. Defaults to * (all available interfaces).
  --master-bind-port MASTER_BIND_PORT
                        Port that locust master should bind to. Only used when running with --master. Defaults to 5557.
  --expect-workers EXPECT_WORKERS
                        How many workers master should expect to connect before starting the test (only when --headless/autostart is used).
  --expect-workers-max-wait EXPECT_WORKERS_MAX_WAIT
                        How long should the master wait for workers to connect before giving up. Defaults to wait forever

Worker options:
  Options for running a Locust Worker node when running Locust distributed.
  Only the LOCUSTFILE (-f option) needs to be specified when starting a Worker, since other options such as -u, -r, -t are specified on the Master node.

  --worker              Set locust to run in distributed mode with this process as worker
  --master-host MASTER_NODE_HOST
                        Host or IP address of locust master for distributed load testing. Only used when running with --worker. Defaults to 127.0.0.1.
  --master-port MASTER_NODE_PORT
                        The port to connect to that is used by the locust master for distributed load testing. Only used when running with --worker. Defaults to 5557.

Tag options:
  Locust tasks can be tagged using the @tag decorator. These options let specify which tasks to include or exclude during a test.

  -T [TAG ...], --tags [TAG ...]
                        List of tags to include in the test, so only tasks with any matching tags will be executed
  -E [TAG ...], --exclude-tags [TAG ...]
                        List of tags to exclude from the test, so only tasks with no matching tags will be executed

Request statistics options:
  --csv CSV_PREFIX      Store current request stats to files in CSV format. Setting this option will generate three files: [CSV_PREFIX]_stats.csv, [CSV_PREFIX]_stats_history.csv and [CSV_PREFIX]_failures.csv
  --csv-full-history    Store each stats entry in CSV format to _stats_history.csv file. You must also specify the '--csv' argument to enable this.
  --print-stats         Enable periodic printing of request stats in UI runs
  --only-summary        Disable periodic printing of request stats during --headless run
  --reset-stats         Reset statistics once spawning has been completed. Should be set on both master and workers when running in distributed mode
  --html HTML_FILE      Store HTML report to file path specified
  --json                Prints the final stats in JSON format to stdout. Useful for parsing the results in other programs/scripts. Use together with --headless and --skip-log for an output only with the json
                        data.

Logging options:
  --skip-log-setup      Disable Locust's logging setup. Instead, the configuration is provided by the Locust test or Python defaults.
  --loglevel LOGLEVEL, -L LOGLEVEL
                        Choose between DEBUG/INFO/WARNING/ERROR/CRITICAL. Default is INFO.
  --logfile LOGFILE     Path to log file. If not set, log will go to stderr

Other options:
  --show-task-ratio     Print table of the User classes' task execution ratio. Use this with non-zero --user option if some classes define non-zero fixed_count attribute.
  --show-task-ratio-json
                        Print json data of the User classes' task execution ratio. Use this with non-zero --user option if some classes define non-zero fixed_count attribute.
  --version, -V         Show program's version number and exit
  --exit-code-on-error EXIT_CODE_ON_ERROR
                        Sets the process exit code to use when a test result contain any failure or error
  -s STOP_TIMEOUT, --stop-timeout STOP_TIMEOUT
                        Number of seconds to wait for a simulated user to complete any executing task before exiting. Default is to terminate immediately. This parameter only needs to be specified for the master
                        process when running Locust distributed.
  --equal-weights       Use equally distributed task weights, overriding the weights specified in the locustfile.
  --enable-rebalancing  Allow to automatically rebalance users if new workers are added or removed during a test run.

User classes:
  UserClass             Optionally specify which User classes that should be used (available User classes can be listed with -l or --list)

locust [ --help ]