Special Variables
There are a couple of variables that act as namespaces for storing data between the executions of probe actions.
| Variable | Description |
|---|---|
vars | vars is a namespace for holding user variables. This can be used to store values between probe executions. |
maps | maps is a namespace for holding user maps (dictionaries). Any non-empty maps will printed out at the end of tracing. They are most useful when combined with aggregations. maps itself behaves like an dictionary with the name @. |