Apple Inc.
Systrace visualization tool

Abstract:

Tracking GPU tasks includes receiving a GPU command buffer, executing the command buffer, and generating events in response to execution of the command buffer, each event generated at a different portion of a GPU pipeline. Generating events includes tagging each event with a unique event-type identifier, tagging each event so as to identify the command buffer, and storing each tagged event is in a memory. Displaying GPU tasks, including obtaining, from a kernel portion of an operating system, event records of a first type, partitioning the events into two or more collections of event records, and displaying two or more of the event records of the first collection in a first temporally ordered sequence.