Metrics Schema

The ci_test_metrics datasource stores all events. The schema is sorted by (timestamp, test_nodeid).

Event Types

Every record has an event_type field. The plugin emits three types:

Event Type	`test_nodeid`	When
`session_start`	`__session__`	Beginning of the pytest session
`test`	Full node ID (e.g. `tests/test_example.py::test_one`)	After each test’s teardown
`session_end`	`__session__`	End of the pytest session

Field	Type	Description	Events
`event_type`	String	`session_start`, `test`, or `session_end`	all
`test_nodeid`	String	Test node ID or `__session__`	all
`timestamp`	DateTime64(3)	UTC timestamp (ISO 8601)	all
`batch_num`	Int32	Batch sequence number	`test`
`duration_s`	Float64	Test wall-clock duration in seconds	`test`
`cpu_before`	Float64	CPU usage % before test	`test`
`cpu_after`	Float64	CPU usage % after test	`test`
`cpu_count`	Int32	Logical CPU count	`session_start`, `session_end`
`mem_total_bytes`	Int64	Total physical memory in bytes	`session_start`, `session_end`
`mem_available_before`	Int64	Available memory before test (bytes)	`test`
`mem_available_after`	Int64	Available memory after test (bytes)	`test`
`mem_percent_before`	Float64	Memory usage % before test	`test`
`mem_percent_after`	Float64	Memory usage % after test	`test`
`disk_total_bytes`	Int64	Total disk space in bytes	`session_start`, `session_end`
`disk_free_before`	Int64	Free disk space before test (bytes)	`test`
`disk_free_after`	Int64	Free disk space after test (bytes)	`test`
`disk_percent_before`	Float64	Disk usage % before test	`test`
`disk_percent_after`	Float64	Disk usage % after test	`test`
`exit_status`	Int32	Pytest exit code	`session_end`
`gh_run_id`	String	GitHub Actions run ID	all
`gh_sha`	String	Git commit SHA	all
`gh_ref_name`	String	Branch or tag name	all
`gh_workflow`	String	Workflow name	all
`gh_job`	String	Job ID	all
`gh_actor`	String	Actor who triggered the run	all
`gh_repository`	String	Repository (owner/repo)	all
`gh_run_attempt`	String	Run attempt number	all