Minimizing bandwith to compress output stream in instruction tracing systems

US9753832B2 · kind B2 · utility

Assignee

• Intel Corporation · US

Inventors

• Ilya Wagner · Hillsboro, US
• Matthew C. Merten · Hillsboro, US
• Frank Binns · Portland, US
• Christine E. Wang · Portland, US
• Mayank Bomb · Hillsboro, US
• Tong Li · Pine Brook, US
• Thilo Schmitt · Zell am Harmersbach, DE
• M D Tofizur Rahman · Portland, US

Key dates

• Filing date: Jun 28, 2013
• Grant date: Sep 5, 2017
• Expiry date: Apr 30, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2201/81
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

In accordance with embodiments disclosed herein, there is provided systems and methods for minimizing bandwidth to compress an output stream of an instruction tracing system. For example, the method may include identifying a current instruction in a trace of the IT module as a conditional branch (CB) instruction. The method includes executing one of generating a CB packet including a byte pattern with an indication of outcome of the CB instruction, or adding an indication of the outcome of the CB instruction to the byte pattern of an existing CB packet. The method includes generating a packet when a subsequent instruction in the trace is not the CB instruction. The packet is different from the CB packet. The method also includes adding the packet into a deferred queue when the packet is deferrable. The method further includes outputting the CB packet followed by the deferred packet into a packet log.