Amazon Technologies, Inc.

Amiram Lifshitz

Erez Izenberg

Said Bshara

Noam Katz

Jonathan Chocron

Techniques to virtualize a physical hardware clock are described. The techniques may include utilizing a coefficients storage to store timestamp coefficient entries. When a timestamp request is received from a client, a selection circuit selects a timestamp coefficient entry from the coefficients storage. A compute circuit then computes a timestamp according to the client's virtualized clock based on the selected timestamp coefficient entry and a counter value of a counter that is driven by a physical clock signal.

Physical hardware clock virtualization

To support different timestamp formats, for example, for different network protocols, an integrated circuit device is provided with a memory that is programmed with multiple instruction sets associated with multiple timestamp formats. Each of the instruction sets contains instructions to generate a timestamp according to a corresponding timestamp format. A compute circuit can generate a formatted timestamp by using a base timestamp input and executing an instruction set selected from the multiple instruction sets stored in the memory.

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Kfar Hess, Israel

Amiram Lifshitz