Granted Patent B2

US 10,747,441 · App. 15/690,992 · Granted Aug 18, 2020

Abstract

Claims (50)

1. A device for allocation of storage connection resources, the device comprising:

a buffer; and

processing circuitry to:

receive an active trigger for a storage device when the storage device is in an idle state;

measure a workload in the buffer that corresponds to the storage device to determine that the workload is in a burst period, wherein a burst period is differentiated from a sustained period by a threshold applied to the measure of the workload;

negotiate connection parameters for the workload, for a connection to the storage device, based on the workload in response to receipt of the active trigger and the burst period,

wherein the negotiated connection parameters are for a lower speed than for the workload in a sustained period, the lower speed sufficient to complete the workload within a quality of service timeframe given an inactive period predicted to follow the burst period,

wherein the connection includes a set of wires, and

wherein the connection parameters include a selection of wires in the set of wires or a signal format for the set of wires; and

execute the workload on the storage device via the connection using the connection parameters to complete execution of the workload in the inactive period when the inactive period follows the burst period.

2. The device of claim 1 , wherein the connection operates in accordance to a Universal Flash Storage (UPS) two family of standards.

3. The device of claim 2 , wherein the connection parameters include a number of lanes to use.

4. The device of claim 2 , wherein the connection parameters include a speed.

5. The device of claim 1 , wherein, to measure the workload, the processing circuitry measures a command statistic of a command queue for the storage device, wherein the command queue is in the buffer.

6. The device of claim 5 , wherein the command statistic includes at least one of a count of commands in the command queue, a total size of commands in the command queue, a frequency of arrival of commands in the command queue, a connection bandwidth for commands in the command queue, or an input-output rate for commands in the command queue.

7. The device of claim 1 , wherein the device is part of a host system to which the storage device is connected, when in operation.

8. The device of claim 1 , wherein the device is a controller packaged in the storage device.

9. The device of claim 1 , wherein the storage device is a three-dimensional NAND Flash storage device.

10. A method for allocation of storage connection resources, the method comprising:

receiving an active trigger for a storage device when the storage device is in an idle state;

measuring a workload in a buffer that corresponds to the storage device to determine that the workload is in a burst period, wherein a burst period is differentiated from a sustained period by a threshold applied to the measure of the workload;

negotiating connection parameters for the workload, for a connection to the storage device, based on the workload in response to receipt of the active trigger and the burst period,

wherein the negotiated connection parameters are for a lower speed than for the workload in a sustained period, the lower speed sufficient to complete the workload within a quality of service timeframe given an inactive period predicted to follow the burst period,

wherein the connection includes a set of wires, and

wherein the connection parameters include a selection of wires in the set of wires or a signal format for the set of wires; and

executing the workload on the storage device via the connection using the connection parameters to complete execution of the workload in the inactive period when the inactive period follows the burst period.

11. The method of claim 10 , wherein the connection operates in accordance to a Universal Flash Storage (UFS) two family of standards.

12. The method of claim 11 , wherein the connection parameters include a number of lanes to use.

13. The method of claim 11 , wherein the connection parameters include a speed.

14. The method of claim 10 , wherein measuring the workload includes measuring a command statistic of a command queue for the storage device.

15. The method of claim 14 , wherein the command statistic includes at least one of a count of commands in the command queue, a total size of commands in the command queue, a frequency of arrival of commands in the command queue, a connection bandwidth for commands in the command queue, or an input-output rate for commands in the command queue.

16. The method of claim 10 , wherein operations of the method are performed by a host system to which the storage device is connected, when in operation.

17. The method of claim 10 , wherein operations of the method are performed by a controller packaged in the storage device.

18. The method of claim 10 , wherein the storage device is a three-dimensional NAND Flash storage device.

19. A non-transitory machine readable medium including instructions that, when executed by processing circuitry, cause the processing circuitry to perform operations comprising:

receiving an active trigger for a storage device when the storage device is in an idle state;

measuring a workload in a buffer that corresponds to the storage device to determine that the workload is in a burst period, wherein a burst period is differentiated from a sustained period by a threshold applied to the measure of the workload;

negotiating connection parameters for the workload, for a connection to the storage device, based on the workload in response to receipt of the active trigger and the burst period,

wherein the negotiated connection parameters are for a lower speed than for the workload in a sustained period, the lower speed sufficient to complete the workload within a quality of service timeframe given an inactive period predicted to follow the burst period,

wherein the connection includes a set of wires, and

wherein the connection parameters include a selection of wires in the set of wires or a signal format for the set of wires; and

executing the workload on the storage device via the connection using the connection parameters to complete execution of the workload in the inactive period when the inactive period follows the burst period.

20. The machine readable medium of claim 19 , wherein the connection operates in accordance to a Universal Flash Storage (UFS) two family of standards.

21. The machine readable medium of claim 20 , wherein the connection parameters include a number of lanes to use.

22. The machine readable medium of claim 20 , wherein the connection parameters include a speed.

23. The machine readable medium of claim 19 , wherein measuring the workload includes measuring a command statistic of a command queue for the storage device.

24. The machine readable medium of claim 23 , wherein the command statistic includes at least one of a count of commands in the command queue, a total size of cominands in the command queue, a frequency of arrival of commands in the command queue, a connection bandwidth for commands in the command queue, or an input-output rate for commands in the command queue.

25. The machine readable medium of claim 19 , wherein operations of the machine readable medium are performed by a host system to which the storage device is connected, when in operation.

26. The machine readable medium of claim 19 , wherein operations of the machine readable medium are performed by a controller packaged in the storage device.

27. The machine readable medium of claim 19 , wherein the storage device is a three-dimensional NAND Flash storage device.

Assignments (7)