thermal_load¶

Source code: thermal_load.py

Tests thermal response under load.

Description¶

Tests that under given load:

Temperatures don’t go over temperature_limit before heat up.
Temperatures go over lower_threshold within heat_up_timeout_secs.
Temperatures don’t go over temperature_limit throughout the entire test.

Test Procedure¶

This is an automated test without user interaction.

Dependency¶

Device API cros.factory.device.thermal.

Examples¶

To use the test:

{
  "pytest_name": "thermal_load",
  "args": {
    "lower_threshold": 40,
    "temperature_limit": 100,
    "heat_up_timeout_secs": 12,
    "duration_secs": 15
  }
}

Test Arguments¶

Name	Type	Description
load	int, None	(optional; default: `None`) Number of threads stressapptest uses. If None is used, this will default to the number of processors in the system.
heat_up_timeout_secs	int	(optional; default: `40`) Timeout interval in seconds for temperature to go over lower_threshold
duration_secs	int	(optional; default: `80`) Time in seconds for the test to run
lower_threshold	int, list	(optional; default: `45`) Minimum temperature value required within heat_up_timeout_secs
temperature_limit	int, list	(optional; default: `75`) Maximum temperature value allowed throughout the entire test.
sensors	str, list, None	(optional; default: `None`) List of temperature sensors to test. Default to main sensor, or “*” for all sensors.
temperatures_difference	int, None	(optional; default: `None`) The difference of temperatures should be under a specified limit.