IP Library › Granted Patent US 11,003,384
Granted Patent B2
US 11,003,384 · App. 16/557,194 · Granted May 11, 2021

Scheduling media management operations based on determined host system usage requirements

Inventor: Poorna Kale (Folsom, CA)
Assignee: MICRON TECHNOLOGY, INC.
G06F3/0655G06F3/0604G06F3/0679
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Quick Facts
Patent No.
US 11,003,384
App. No.
16/557,194
Granted
May 11, 2021
Kind
B2
Abstract

Host data to be written at a memory sub-system is received. A write operation is performed to write the host data at the memory sub-system. Based on the performance of the write operation, one or more usage parameter values are determined. The one or more parameter values correspond to one or more operations performed at the memory sub-system. Based on the one or more usage parameter values, a first expected time period is determined during which a first set of subsequent host data will be received from the host system and a second expected time period is determined during which a second set of subsequent host data will be received from the host system. A media management operation is scheduled to be performed between the first expected time period and the second expected time period.

Claims (66)

1. A method comprising:

receiving, from a host system, host data to be written at a memory sub-system;

performing a write operation to write the host data at the memory sub-system;

determining, based on the performance of the write operation, one or more usage parameter values, wherein the one or more usage parameter values correspond to one or more operations performed at the memory sub-system;

determining, based on the one or more usage parameter values, a first expected time period during which the memory sub-system is to receive a first set of subsequent host data from the host system and a second expected time period during which the memory sub-system is to receive a second set of subsequent host data from the host system; and

scheduling a media management operation to be performed between the first expected time period and the second expected time period.

2. The method of claim 1 , wherein the one or more usage parameter values are determined based on the performance of the write operation for a threshold amount of host data received from the host system and written at the memory sub-system.

3. The method of claim 1 , further comprising:

responsive to receiving an indication that the first set of subsequent host data has been stored at the memory sub-system, performing the scheduled media management operation at a first portion of memory devices of the memory sub-system;

determining whether the memory sub-system is to receive the second set of subsequent host data from the host system at the second expected time period; and

responsive to determining that the memory sub-system is not to receive the second set of subsequent host data at the second expected time period, performing the scheduled media management operation at a second portion of memory devices of the memory sub-system.

4. The method of claim 3 , further comprising:

responsive to determining that the memory sub-system is to receive the second set of subsequent host data at the second expected time period, receiving, from the host system, the second set of subsequent host data at the second expected time period;

storing the second set of subsequent host data at the memory sub-system; and

performing the scheduled media management operation at the second portion of memory devices of the memory sub-system.

5. The method of claim 3 , wherein determining whether the memory sub-system is to receive the second set of subsequent host data from the host system at the second expected time period comprises:

transmitting a request, to the host system, inquiring whether the host system is to transmit the second set of subsequent host data at the second expected time period; and

receiving a response, from the host system, indicating whether the memory sub-system is to receive the second set of subsequent host data from the host system at the second expected time period.

6. The method of claim 1 , wherein scheduling the media management operation to be performed comprises:

determining, based on the first expected time period and the second expected time period, an idle time period, wherein host data is not expected to be received from the host system during the idle time period; and

determining that the media management operation is to be performed after the first set of subsequent host data is received at the first expected time period and during the idle time period.

7. The method of claim 1 , further comprising:

determining, based on the one or more usage parameter values, a portion of memory devices of the memory sub-system to be reserved as a buffer space, wherein the buffer space is to store host data received from the host system while the scheduled media management operation is being performed; and

reserving the determined portion of memory devices of the memory sub-system.

8. The method of claim 1 , wherein the one or more usage parameter values comprise at least one of a data burst rate, an amount of data write idle time, an average host system usage time, or a maximum host system usage time.

9. A system comprising:

a memory component; and

a processing device, operatively coupled with the memory component to:

receive, from a host system, host data to be written at the memory component;

perform a write operation to write the host data at the memory component;

determine, based on the performance of the write operation, one or more usage parameter values, wherein the one or more usage parameter values correspond to one or more operations performed at the memory component;

determine, based on the one or more usage parameter values, a rate at which host data is to be written to the memory component;

determine, based on the rate at which the host data is to be written, an idle time period during which host data is not expected to be written to the memory component; and

schedule a media management operation to be performed during the idle time period.

10. The system of claim 9 , wherein the one or more usage parameter values are determined based on the performance of the write operation for a threshold amount of host data received from the host system and written at the memory component.

11. The system of claim 9 , wherein the idle time period comprises a first idle time period and wherein the processing device is further to:

responsive to receiving an indication that a first set of subsequent host data has been written at the memory component, perform the scheduled media management operation at a first portion of memory devices of the memory component for the idle time period;

determine whether the memory component is to receive a second set of subsequent host data from the host system after the idle time period has expired; and

responsive to determining that the memory component is not to receive the second set of subsequent host data after the idle time period has expired, perform the scheduled media management operation at a second portion of memory devices of the memory component.

12. The system of claim 11 , wherein the processing device is further to:

responsive to determining that the memory component is to receive the second set of subsequent host data after the idle time period has expired, receive, from the host system, the second set of subsequent host data after the idle time period has expired;

store the second set of subsequent host data at the memory component; and

perform the scheduled media management operation at the second portion of memory devices of the memory component for a second idle time period.

13. The system of claim 9 , wherein the processing device is further to:

determine, based on the one or more usage parameter values, a portion of memory devices of the memory component to be reserved as a buffer space, wherein the buffer space is to store host data received from the host system while the scheduled media management operation is being performed; and

reserve the determined portion of memory devices of the memory component.

14. The system of claim 9 , wherein the one or more usage parameter values comprise at least one of a data burst rate, an amount of data write idle time, an average host system usage time, or a maximum host system usage time.

15. A non-transitory computer readable medium comprising instructions, which when executed by a processing device, are to:

receive, from a host system, host data to be written at a memory sub-system;

perform a write operation to write the host data at the memory sub-system;

determine, based on the performance of the write operation, one or more usage parameter values, wherein the one or more usage parameter values correspond to one or more operations performed at the memory sub-system;

determine, based on the one or more usage parameter values, a first expected time period during which the memory sub-system is to receive a first set of subsequent host data from the host system and a second expected time period during which the memory sub-system is to receive a second set of subsequent host data from the host system; and

schedule a media management operation to be performed between the first expected time period and the second expected time period.

16. The non-transitory computer readable medium of claim 15 , wherein the one or more usage parameter values are determined based on the performance of the write operation for a threshold amount of host data received from the host system and written at the memory sub-system.

17. The non-transitory computer readable medium of claim 15 , wherein the processing device is further to:

responsive to receiving an indication that the first set of subsequent host data has been stored at the memory sub-system, perform the scheduled media management operation at a first portion of memory devices of the memory sub-system;

determine whether the memory sub-system is to receive the second set of subsequent host data from the host system at the second expected time period; and

responsive to determining that the memory sub-system is not to receive the second set of subsequent host data at the second expected time period, perform the scheduled media management operation at a second portion of memory devices at the memory sub-system.

18. The non-transitory computer readable medium of claim 17 , wherein the processing device is further to:

responsive to determining that the memory sub-system is to receive the second set of subsequent host data at the second expected time period, receive, from the host system, the second set of subsequent host data at the second expected time period;

store the second set of subsequent host data at the memory sub-system; and

perform the scheduled media management operation at the second portion of memory devices of the memory sub-system.

19. The non-transitory computer readable medium of claim 15 , wherein the processing device is further to:

determine, based on the one or more usage parameter values, a portion of memory devices at the memory sub-system to be reserved as a buffer space, wherein the buffer space is to store host data received from the host system while the scheduled media management operation is being performed; and

reserve the determined portion of memory devices at the memory sub-system.

20. The non-transitory computer readable medium of claim 15 , wherein the one or more usage parameter values comprise at least one of a data burst rate, an amount of data write idle time, an average host system usage time, or a maximum host system usage time.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2023
From: MICRON TECHNOLOGY, INC.
To: LODESTAR LICENSING GROUP LLC
Reel/Frame 065501/0730 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 25, 2019
From: KALE, POORNA
To: MICRON TECHNOLOGY, INC.
Reel/Frame 050832/0774 →
Continuity (1)
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