How to inspect resource usage

This section describes how one can inspect the ways in which tango devices consume cpu and memory resources.

When to use it

When the resource specification of a pod (realizing a tango device) could be under or over specified. When timeouts or devices become non responsive during the execution of a test.

How to use the feature

There are stages in which the resources can be inspected, leading to two distinct ways of using the feature:

At a “snapshot” of the general state of an entire deployment of a release

During the execution of a specific test involving requests being serviced by a tango device.

The first stage can be done by running the binary script:

getrstats

The second stage can be enabled by setting a new flag in the waiting setup for an event subscription, e.g.:

brd = get_message_board_builder()
brd.set_waiting_on("my_device", mon_resources=True)