公开(公告)号：US12216514B1

公开(公告)日：2025-02-04

申请号：US17548376

申请日：2021-12-10

Applicant: Amazon Technologies, Inc.

Inventor： Robert Klein ,  Ziv Harel

IPC: G06F1/20 ,  G05B19/4155

Abstract: A hardware card that can be implemented in a server system is disclosed. The hardware card may be, for instance, a network interface card coupled to a board such as a motherboard or backplane in a computing system. In various instances, the hardware card reports a temperature to a management controller on the board (e.g., a baseboard management controller) that is adjusted due to thermal degradation of the hardware card. For example, the temperature output by the hardware card may be adjusted based on a comparison of a current temperature profile (including transient temperature of the hardware card) to a predetermined temperature profile stored on the hardware card.

公开(公告)号：US11855757B1

公开(公告)日：2023-12-26

申请号：US17643785

申请日：2021-12-10

Applicant: Amazon Technologies, Inc.

Inventor： Julien Ridoux ,  Joshua Benjamin Levinson ,  Said Bshara ,  Erez Izenberg ,  Robert Klein ,  Alan Michael Judge

IPC: G06F1/10 ,  G06F1/12 ,  H04J3/06

CPC classification number: H04J3/0644 ,  G06F1/10 ,  G06F1/12

Abstract: Systems and methods are provided for highly accurate synchronization of machine instances in a distributed, hosted computing environment to a reference timekeeper. In addition to a general communication network accessible to machine instances, the distributed environment includes a second network dedicated to carrying time information, such as a pulse-per-second (PPS) signal to isolated timing hardware within host computing devices. The isolated timing hardware can use the PPS signal, along with a reference time, to set a hardware clock. The isolated timing hardware can further provide an interface to machine instances that enables the instances to read the time of the hardware clock. This configuration enables many instances can share access to a single reference timekeeper, thus synchronizing those instances to a much higher accuracy than in traditional network-based time protocols.