Identifying memory devices for swapping virtual machine memory pages
Systems and methods for identifying memory devices for swapping virtual machine memory pages. An example method may comprise: identifying, by a processing device, a workload type associated with a workload being executed by a computer system; identifying a memory device associated with the workload type; evaluating a memory pressure metric reflecting a period of time during which an application being executed by the computer system has been blocked by a memory allocation operation; and responsive to determining that the memory pressure metric exceeds a threshold value, allocating a memory block on the identified memory device.
1. A method, comprising:
identifying, by a processing device, in view of a runtime value of a parameter of an application being executed by a computer system, a workload type associated with the application, wherein the workload type reflects a classification of the application based on a type of data being consumed by the application;
identifying a memory device that stores transformed memory pages that are transformed by a transformation function associated with the workload type;
evaluating a memory pressure metric associated with the application;
responsive to determining that the memory pressure metric exceeds a threshold value, allocating a memory block on the identified memory device; and
responsive to detecting a page fault triggered by an attempt to access a memory page by the application, swapping the memory page with the allocated memory block.
2. The method of claim 1 , wherein the memory device is provided by one of: a file or a raw storage device.
3. The method of claim 1 , wherein the memory device is provided by one of: a compressed storage device, an encrypted storage device, or a huge page device.
4. The method of claim 1 , further comprising:
identifying an uncompressed memory device responsive to determining that the workload is associated with at least one of: video stream data or audio stream data.
5. The method of claim 1 , further comprising:
identifying a compressed memory device responsive to determining that the workload is associated with uncompressed data.
6. The method of claim 1 , further comprising:
identifying an encrypted memory device responsive to determining that the workload is associated with security-sensitive data.
7. The method of claim 1 , further comprising:
identifying a huge page memory device responsive to determining that the workload is associated with huge page memory pages.
8. The method of claim 1 , wherein identifying the memory device type comprises identifying, in a memory data structure, a record mapping the workload type identifier to a type identifier of the memory device.
9. A computer system comprising:
a memory; and
a processor, coupled to the memory, to:
identify, in view of a runtime value of a parameter of an application being executed by the computer system, a workload type associated with the application, wherein the workload type reflects a classification of the application based on a type of data being consumed by the application;
identify a memory device that stores transformed memory pages that are transformed by a transformation function associated with the workload type;
evaluate a memory pressure metric associated with the application;
responsive to determining that the memory pressure metric exceeds a threshold value, allocate a memory block on the identified memory device; and
responsive to detecting a page fault triggered by an attempt to access a memory page by the application, swap the memory page with the allocated memory block.
10. The system of claim 9 , wherein the memory device is provided by one of: a compressed storage device, an encrypted storage device, or a huge page device.
11. The system of claim 9 , wherein the processor is further to:
identify an uncompressed memory device responsive to determining that the workload is associated with at least one of: video stream data or audio stream data.
12. The system of claim 9 , wherein the processor is further to:
identify a compressed memory device responsive to determining that the workload is associated with uncompressed data.
13. A computer-readable non-transitory storage medium comprising executable instructions that, when executed by a computer system, cause the computer system to perform operations comprising:
identify, in view of a runtime value of a parameter of an application being executed by the computer system, a workload type associated with the application, wherein the workload type reflects a classification of the application based on a type of data being consumed by the application;
identify a memory device that stores transformed memory pages that are transformed by a transformation function associated with the workload type;
evaluate a memory pressure metric associated with the application;
responsive to determining that the memory pressure metric exceeds a threshold value, allocate a memory block on the identified memory device; and
responsive to detecting a page fault triggered by an attempt to access a memory page by the application, swap the memory page with the allocated memory block.
14. The computer-readable non-transitory storage medium of claim 13 , wherein the memory device is provided by one of: a file or a raw storage device.
15. The computer-readable non-transitory storage medium of claim 13 , further comprising executable instructions to cause the processing device to:
identify an uncompressed memory device responsive to determining that the workload is associated with at least one of: video stream data or audio stream data.
16. The computer-readable non-transitory storage medium of claim 13 , further comprising executable instructions to cause the processing device to:
identifying a compressed memory device responsive to determining that the workload is associated with uncompressed data.