Amazon Technologies, Inc.

Gary S Shankman

Christopher James BeSerra

Gavin Akira Ebisuzaki

Terry Lee Nissley

Felipe Enrique Ortega Gutierrez

The following description is directed to dynamically adjusting a refresh rate. In one example, a method can include determining a rate of memory errors, and dynamically adjusting a refresh rate of a memory based at least partially on the determined rate of memory errors.

Dynamic adjustment of refresh rate

Methods and systems for detecting passive failure in a cooling system that employs two or more actuators for moving a fluid can include outputting a control signal to cause the movement of an actuator, where the control signal is associated with an expected rate of movement of the actuator; receiving information concerning an output signal from the actuator that is associated with an actual rate of movement of the actuator; and comparing the actual rate of movement of the actuator with the expected rate of movement of the actuator. A passive failure can be detected when the actual rate of movement of the actuator falls outside a nominal range that is based on the control signal.

Detecting passive failure in cooling systems

Techniques and solutions for automatically filtering network broadcast traffic are described. For example, network broadcast traffic can be automatically filtered by turning broadcast filtering on and off (e.g., as a continuous strobe pattern that alternates enabling and disabling of broadcast filtering). For example, a computing device (e.g., via a network interface or management controller of the computing device) can automatically enable network broadcast traffic filtering during a first time period (e.g., a four second time period) and disable network broadcast traffic filtering during a second time period (e.g., a one second time period). A computing device can also automatically enable and disable network broadcast traffic filtering according to an on-off pattern (e.g., based on various criteria, such as network queue size, broadcast traffic volume, etc.).

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Olympia, WA, United States of America

Gary S Shankman