Dynamic guard band with timing protection and with performance protection

US11953982B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Alejandro Alberto Cook Lobo · Renningen, DE
• Andrew A. Turner · Colchester, US
• Christian Jacobi · West Park, US
• Eberhard Engler · Rötteln, DE
• Edward C. McCain · Lagrangeville, US
• Kevin P. Low · Poughkeepsie, US
• Phillip J. Restle · Katonah, US
• Pradeep Bhadravati Parashurama · Bhadravati, IN
• Tobias Webel · Eppelheim, DE
• Alper Buyuktosunoglu · White Plains, US
• Karl Evan Smock Anderson · Poughkeepsie, US
• Sean Michael Carey · Hyde Park, US
• Kennedy K. Cheruiyot · Rochester, US
• Daniel Kiss · Stuttgart, DE
• Isidore G. Bendrihem · Fort Lee, US
• Ian Krispin Carmichael · Round Rock, US

Key dates

• Filing date: Jul 19, 2022
• Grant date: Apr 9, 2024
• Expiry date: Aug 31, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F11/076
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Embodiments include in response to monitoring a processor during operation, detecting a first number of core recovery events in the processor, determining that the first number of core recovery events fulfills a first condition for the first core recovery events threshold, and modifying a value of at least one droop sensor parameter of the processor by a first amount. The at least one droop sensor parameters affects a sensitivity to a voltage droop. In response to modifying the value of the droop sensor parameter by the first amount, a second number of core recovery events is detected in the processor. It is determined that the second number of core recovery events fulfills a second condition for a second core recovery events threshold, and the value of the at least one droop sensor parameter is modified by a second amount.