Abstract: 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.

Abstract: In a provider network, a request is received for diagnostic information for a computing resource. In response to the request, diagnostic information from the computing resource is accessed via an out-of-band communication channel. The diagnostic information is stored for fault analysis. The out-of-band communication channel is operative when the one computing resource is not in a normal operating state.

Abstract: 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.).