US 10,884,928 B2 · Data caching

Abstract

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for caching data not frequently accessed. One of the methods includes receiving a request for data from a component of a device, determining that the data satisfies an infrequency condition, in response to determining that the data satisfies the infrequency condition: determining a target cache level which defines a cache level within a cache level hierarchy of a particular cache at which to store infrequently accessed data, the target cache level being lower than a highest cache level in the cache level hierarchy, requesting and receiving the data from a memory that is not a cache of the device, and storing the data in a level of the particular cache that is at or below the target cache level in the cache level hierarchy, and providing the data to the component.

Claims20

Dependent claims

A computer-implemented method comprising:

receiving a request for data from a component of a device;
determining that the request for the data comprises a request for a nested page table;
in response to determining that the request for the data comprises a request for a nested page table:
determining whether the data is a particular type of data and that the data should only be stored in a cache at a level no higher than a target cache level;
in response to determining that the data is the particular type of data and that the data should only be stored in a cache at a level no higher than a target cache level:
determining the target cache level which defines a cache level within a cache level hierarchy of a particular cache at which to store data that is of the particular type of data, the target cache level being lower than a highest cache level in the cache level hierarchy;
requesting and receiving the data from a memory that is not a cache of the device;
and
storing the data in a level of the particular cache that is at or below the target cache level in the cache level hierarchy;
and
providing the data to the component.

8 more elements

A non-transitory computer readable storage medium storing instructions, which are executable by a data processing apparatus and, upon such execution, cause the data processing apparatus to perform operations comprising:

receiving a request for data from a component of a device;
determining that the request for the data comprises a request for a nested page table;
in response to determining that the request for the data comprises a request for a nested page table:
determining whether the data is a particular type of data and that the data should only be stored in a cache at a level no higher than a target cache level;
in response to determining that the data is the particular type of data and that the data should only be stored in a cache at a level no higher than a target cache level:
determining the target cache level which defines a cache level within a cache level hierarchy of a particular cache at which to store data that is of the particular type of data, the target cache level being lower than a highest cache level in the cache level hierarchy;
requesting and receiving the data from a memory that is not a cache of the device;
and
storing the data in a level of the particular cache that is at or below the target cache level in the cache level hierarchy;
and
providing the data to the component.

8 more elements

A system, comprising:

a data processing apparatus;
and
a non-transitory computer readable storage medium storing instructions, which are executable by a data processing apparatus and, upon such execution, cause the data processing apparatus to perform operations comprising:
receiving a request for data from a component of a device;
determining that the request for the data comprises a request for a nested page table;
in response to determining that the request for the data comprises a request for a nested page table:
determining whether the data is a particular type of data and that the data should only be stored in a cache at a level no higher than a target cache level;
in response to determining that the data is the particular type of data and that the data should only be stored in a cache at a level no higher than a target cache level:
determining the target cache level which defines a cache level within a cache level hierarchy of a particular cache at which to store data that is of the particular type of data, the target cache level being lower than a highest cache level in the cache level hierarchy;
requesting and receiving the data from a memory that is not a cache of the device;
and
storing the data in a level of the particular cache that is at or below the target cache level in the cache level hierarchy;
and
providing the data to the component.

11 more elements

Dependencies are inferred from the claim text.

Data caching

Life of this patent

Data caching

Life of this patent

Abstract

Claims20