The number of Jira REST API beans returned in the response.

The number of expensive operations executed while evaluating the expression. Expensive operations are those that load additional data, such as entity properties, comments, or custom fields.

The number of primitive values returned in the response.

The number of steps it took to evaluate the expression, where a step is a high-level operation performed by the expression. A step is an operation such as arithmetic, accessing a property, accessing a context variable, or calling a function.