公开(公告)号：US20240281043A1

公开(公告)日：2024-08-22

申请号：US18654133

申请日：2024-05-03

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： James ROHRKEMPER ,  Sanjeev R. SONDUR ,  Kenny C. GROSS ,  Guang C. WANG

IPC: G06F1/20 ,  H05K7/20

CPC classification number: G06F1/206 ,  H05K7/20136 ,  H05K7/20718 ,  H05K7/20836

Abstract: Systems, methods, and other embodiments associated with detecting feedback control instability in computer thermal controls are described herein. In one embodiment, a method includes executing a workload on the computing system, wherein the workload varies between a minimum and a maximum at a workload frequency. The method includes recording thermal telemetry from the computing system during execution of the workload. The method includes converting the recorded thermal telemetry into a frequency domain. The method includes detecting whether thermal control of the computing system exhibits feedback control instability based on dissimilarity in the frequency domain between the transformed thermal telemetry and the workload frequency. And, the method includes generating an electronic alert that indicates whether the thermal control of the computing device exhibits the feedback control instability.

公开(公告)号：US20230135691A1

公开(公告)日：2023-05-04

申请号：US17516975

申请日：2021-11-02

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： James ROHRKEMPER ,  Sanjeev R. SONDUR ,  Kenny C. GROSS ,  Guang C. WANG

IPC: G06F1/20 ,  H05K7/20

Abstract: Systems, methods, and other embodiments associated with detecting feedback control instability in computer thermal controls are described herein. In one embodiment, a method includes for a set of dwell time intervals, wherein the dwell time intervals are associated with a range of periods of time from an initial period to a base period, executing a workload that varies from minimum to maximum over the period on a computer during the dwell time interval; recording telemetry data from the computer during execution of the workload; incrementing the period towards a base period; determining that either the base period is reached or a thermal inertia threshold is reached; and analyzing the recorded telemetry data over the set of dwell time intervals to either (i) detect presence of a feedback control instability in thermal control for the computer; or (ii) confirm feedback control stability in thermal control for the computer.