The msServiceProfiler module offers Python APIs for profiling inference services.

For details about the functions and usage examples of the inference serving profiling APIs, see Data Profiling.

Python API import: from ms_service_profiler import Profiler, Level

Specific APIs are listed below.

**Table 1** Profiling APIs (Python)
API	Description
init	Performs initialization.
__enter__/__exit__	Calls the span_start function automatically when the process enters to log its start time. Calls the span_end function automatically when the process exits to log its end time.
span_start	Records the start node of a process.
span_end	Records the end node of a process.
event	Records an event.
link	Records the association between different resources.
metric	Records the value of a metric class.
metric_inc	Records the increment of a metric class.
metric_scope	Defines the scope of a metric class.
metric_scope_as_req_id	Defines the scope of a metric class as the request ID.
launch	Flushes the request record to the disk.
attr	Adds an attribute and returns the current object. Chain calls are supported.
domain	Defines the domain of the data. Entries in the same domain form a category in the trace data.
res	Assigns a unique resource ID to link the data with its corresponding timeline.
get_msg	Obtains the current record data.

Overview