Invention Grant
- Patent Title: System for correlation of operating system and hardware trace events
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Application No.: US14864597Application Date: 2015-09-24
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Publication No.: US10430313B2Publication Date: 2019-10-01
- Inventor: Norbert Schulz , Frank Penczek , Joseph E. Wylder , Eran Geva
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Grossman, Tucker, Perreault & Pfleger, PLLC
- Main IPC: G06F1/00
- IPC: G06F1/00 ; G06F11/34

Abstract:
Generally, this disclosure provides systems, methods and computer readable media for correlation of OS and hardware events to provide a corrected trace sequence. A system may include a processor configured to receive an OS event at a first time, generate a first timestamp based on a first clock associated with the OS, buffer the OS event until a second time, and generate a second timestamp based on the first clock. The system may also include a trace generation circuit configured to receive the OS event from the processor after the second time and generate a third timestamp based on a second clock associated with the trace generation circuit. The system may further include a trace correction circuit configured to calculate a corrected timestamp for the OS event based on differences between the first, second and third timestamps and further based on the relative frequency between the first and second clocks.
Public/Granted literature
- US20170091063A1 SYSTEM FOR CORRELATION OF OPERATING SYSTEM AND HARDWARE TRACE EVENTS Public/Granted day:2017-03-30
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