Quality of service based memory throttling

Patent metadata

Field	Value
Publication number	US-10936044-B2
Application number	US-201516064050-A
Country	US
Kind code	B2
Filing date	Dec 21, 2015
Priority date	Dec 21, 2015
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

An example memory device comprises at least one memory region; and a controller to determine exceeding of a throttling threshold and to throttle processing of access requests for the at least one memory region.

First claim

What is claimed is:

1. A method, comprising:
receiving, by a memory device, a memory access request from a memory controller for access to at least one memory region of the memory device;
determining, by a controller of the memory device, when a throttling threshold associated with the memory device has been exceeded; and
throttling processing of the memory access requests, wherein the throttling includes reducing a rate of processing of the memory access request for the at least one memory region; wherein the determining when the throttling threshold has been exceeded comprises:
identifying a first memory region of the at least one memory region associated with the memory access request;
determining that the first memory region is subject to a quality-of-service (QoS) restriction; and
determining if the QoS restriction dictates a delay in processing the memory access request.

2. The method of claim 1 , wherein the memory device is a dynamic random access memory (DRAM) device.

3. The method of claim 1 , wherein the determining when the throttling threshold has been exceeded comprises:
obtaining a temperature of a portion of the memory device; and
determining that the temperature is above a temperature threshold.

4. The method of claim 1 , wherein the determining when the throttling threshold has been exceeded comprises:
obtaining a power draw level for the memory device; and
determining that the power draw level is above a power draw threshold.

5. A non-transitory computer-readable medium encoded with instructions executable by a processor of a computing system, the computer-readable storage medium comprising instructions to:
receive a memory access request from a memory controller for access to at least one memory region of the memory device;
determine when a throttling threshold associated with the memory device has been exceeded; and
throttling processing of the memory access requests, wherein the throttling includes reducing a rate of processing of the memory access request for the at least one memory region; wherein the determining when the throttling threshold has been exceeded comprises:
identifying a first memory region of the at least one memory region associated with the memory access request;
determining that the first memory region is subject to a quality-of-service (QoS) restriction; and
determining the QoS restriction dictates a delay in processing the memory access request.

6. The non-transitory computer-readable medium of claim 5 , wherein the determining when the throttling threshold has been exceeded comprises:
obtaining a temperature of a portion of the memory device; and
determining that the temperature is above a temperature threshold.

7. The non-transitory computer-readable medium of claim 5 , wherein the determining when the throttling threshold has been exceeded comprises:
obtaining a power draw level for the memory device; and
determining that the power draw level is above a power draw threshold.

Assignees

• Hewlett Packard Entpr Dev Lp

Inventors

• Bacchus Reza
• Benedict Melvin
• Pope Eric L

Classifications

• G06F11/3062

  where the monitored property is the power consumption (power management in a computing system G06F1/3203) · CPC title

• G11C7/04

  with means for avoiding disturbances due to temperature effects · CPC title

• G06F1/3225

  of memory devices · CPC title

• G06F1/3206

  Monitoring of events, devices or parameters that trigger a change in power modality · CPC title

• G06F2213/16

  Memory access · CPC title