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1. (WO2018182782) DISTRIBUTED HARDWARE TRACING

Pub. No.:    WO/2018/182782    International Application No.:    PCT/US2017/057619
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Sat Oct 21 01:59:59 CEST 2017
IPC: G06F 11/30
G06F 11/34
Applicants: GOOGLE LLC
Inventors: NORRIE, Thomas
KUMAR, Naveen
Title: DISTRIBUTED HARDWARE TRACING
Abstract:
A computer-implemented method executed by one or more processors, the method includes monitoring execution of program code executed by a first processor component; and monitoring execution of program code executed by a second processor component. A computing system stores data identifying hardware events in a memory buffer. The stored events occur across processor units that include at least the first and second processor components. The hardware events each include an event time stamp and metadata characterizing the event. The system generates a data structure identifying the hardware events. The data structure arranges the events in a time ordered sequence and associates events with at least the first or second processor components. The system stores the data structure in a memory bank of a host device and uses the data structure to analyze performance of the program code executed by the first or second processor components.