Efficient dirty page expiration

Patent metadata

Field	Value
Publication number	US-12045474-B2
Application number	US-202117392031-A
Country	US
Kind code	B2
Filing date	Aug 2, 2021
Priority date	Aug 2, 2021
Publication date	Jul 23, 2024
Grant date	Jul 23, 2024

Abstract

Systems and methods providing efficient dirty memory page expiration. In one implementation, a processing device may identify a storage device. The processing device may determine a value of an indicator associated with the storage device. The indicator may indicate a level of consistency between a volatile memory device and a non-volatile memory device of the storage device. In view of the value of the indicator, the processing device may modify a synchronization timeout value associated with the volatile memory device.

First claim

What is claimed is:

1. A method comprising:
identifying an instruction to mount a storage device, wherein the instruction comprises a consistency indicator, and wherein the storage device is associated with a build container for creating an application image in a cloud execution environment;
determining a value of the consistency indicator associated with the storage device, wherein the consistency indicator indicates a level of consistency between a volatile memory device and a non-volatile memory device of the storage device; and
setting a plurality of synchronization timeout values associated with the volatile memory device, wherein the synchronization timeout values are based on the value of the consistency indicator, and wherein setting the plurality of synchronization timeout values comprises disabling at least one of the plurality of synchronization timeout values associated with the volatile memory device.

2. The method of claim 1 , wherein a synchronization timeout value of the plurality of synchronization timeout values indicates a rate at which to store one of one or more memory pages of the volatile memory device to the non-volatile memory device.

3. The method of claim 1 , wherein setting the plurality of synchronization timeout values comprises:
setting a value of an access time expiration to a predefined value associated with the volatile memory device, wherein a memory page of the volatile memory device is written to the non-volatile memory device when the value of the access time expiration matches an elapsed time since the memory page was last accessed.

4. The method of claim 1 , wherein setting the plurality of synchronization timeout values comprises:
setting a value of a timestamp expiration to a predefined value associated with the volatile memory device, wherein a memory page of the volatile memory device is written to the non-volatile memory device at a time interval equal to the value of the timestamp expiration.

5. The method of claim 1 , further comprising:
responsive to determining that the volatile memory device has reached a threshold capacity, storing a share of the volatile memory device to the non-volatile memory device.

6. The method of claim 1 , wherein the storage device is mounted by the build container in the cloud execution environment.

7. A system comprising:
a memory; and
a processing device operatively coupled to the memory, the processing device to:
identify an instruction to mount a storage device, wherein the instruction comprises a consistency indicator, and wherein the storage device is associated with a build container for creating an application image in a cloud execution environment;
determine a value of the consistency indicator associated with the storage device, wherein the consistency indicator indicates a level of consistency between a volatile memory device and a non-volatile memory device of the storage device; and
set a plurality of synchronization timeout values associated with the volatile memory device, wherein the synchronization timeout values are based on the value of the consistency indicator, and wherein setting the plurality of synchronization timeout values comprises disabling at least one of the plurality of synchronization timeout values associated with the volatile memory device.

8. The system of claim 7 , wherein a synchronization timeout value of the plurality of synchronization timeout values indicates a rate at which to store one of one or more memory pages of the volatile memory device to the non-volatile memory device.

9. The system of claim 7 , wherein to set the plurality of synchronization timeout values comprises:
setting a value of an access time expiration to a predefined value associated with the volatile memory device.

10. The system of claim 7 , wherein to set the plurality of synchronization timeout values comprises:
setting a value of a timestamp expiration to a predefined value associated with the volatile memory device.

11. The system of claim 7 , wherein the processing device is further to:
responsive to determining that the volatile memory device has reached a threshold capacity, store a share of the volatile memory device to the non-volatile memory device.

12. A non-transitory computer-readable media storing instructions that, when executed, cause a processing device to perform operations comprising:
identifying an instruction to mount a storage device, wherein the instruction comprises a consistency indicator, and wherein the storage device is associated with a build container for creating an application image in a cloud execution environment;
determining a value of the consistency indicator associated with the storage device, wherein the consistency indicator indicates a level of consistency between a volatile memory device and a non-volatile memory device of the storage device; and
setting a plurality of synchronization timeout values associated with the volatile memory device, wherein the plurality of synchronization timeout values are based on the value of the consistency indicator, and wherein setting the plurality of synchronization timeout values comprises disabling at least one of the plurality of synchronization timeout values associated with the volatile memory device.

13. The non-transitory computer-readable media of claim 12 , wherein a synchronization timeout value of the plurality of synchronization timeout values indicates a rate at which to store one of one or more memory pages of the volatile memory device to the non-volatile memory device.

14. The non-transitory computer-readable media of claim 12 , wherein setting the plurality of synchronization timeout values comprises:
setting a value of an access time expiration to a predefined value associated with the volatile memory device.

15. The non-transitory computer-readable media of claim 12 , wherein setting the plurality of synchronization timeout values comprises:
setting a value of a timestamp expiration to a predefined value associated with the volatile memory device.

16. The non-transitory computer-readable media of claim 12 , further comprising:
responsive to determining that the volatile memory device has reached a threshold capacity, storing a share of the volatile memory device to the non-volatile memory device.

17. The non-transitory computer-readable media of claim 12 , wherein the storage device is mounted by the build container in the cloud execution environment.

18. The system of claim 7 , wherein the storage device is mounted by the build container in the cloud execution environment.

Assignees

• Red Hat Inc

Inventors

• Arcangeli Andrea
• Scrivano Giuseppe
• Tsirkin Michael

Classifications

• G06F3/0659

  Command handling arrangements, e.g. command buffers, queues, command scheduling · CPC title

• G06F3/0683

  Plurality of storage devices · CPC title

• G06F3/0604

  Improving or facilitating administration, e.g. storage management · CPC title

• G06F3/067

  Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS] · CPC title

• G06F3/0635

  by changing the path, e.g. traffic rerouting, path reconfiguration · CPC title