US 12,547,544 B1 · Core snooping cache

Abstract

Systems and methods described herein relate to a software cache that implements a processing core snooping mechanism. A reference to a data object is stored in a plurality of core pools of the software cache. Each core pool is uniquely associated with a respective processing core. The storing of the reference enables access to the reference from every core pool. A cache miss occurs with respect to a target reference when a first processing core does not find the target reference in a first core pool that is uniquely associated with the first processing core. In response to the cache miss, the target reference is retrieved from a second core pool that is uniquely associated with a second processing core. The second core pool is reachable from the first core pool. The target reference retrieved from the second core pool is copied to the first core pool.

Claims20

Dependent claims

A computer-implemented method comprising:

for each data object of a plurality of data objects, storing a reference to the data object in a subset of a plurality of core pools of a software cache, each core pool of the plurality of core pools being uniquely associated with a respective processing core of a plurality of processing cores, and the storing of the reference enabling access to the reference from each of the plurality of core pools based on a pool access range;
detecting a cache miss on a target reference by a first processing core of the plurality of processing cores that is uniquely associated with a first core pool of the plurality of core pools, the target reference being the reference to a particular one of the plurality of data objects;
in response to detecting the cache miss, retrieving the target reference from a second core pool of the plurality of core pools that is uniquely associated with a second processing core of the plurality of processing cores, the second core pool being within the pool access range of the first core pool;
and
copying the target reference retrieved from the second core pool to the first core pool.

2 more elements

A system comprising:

at least one memory that stores instructions;
and
one or more processors configured by the instructions to perform operations comprising:
for each data object of a plurality of data objects, storing a reference to the data object in a subset of a plurality of core pools of a software cache, each core pool of the plurality of core pools being uniquely associated with a respective processing core of a plurality of processing cores, and the storing of the reference enabling access to the reference from each of the plurality of core pools based on a pool access range;
detecting a cache miss on a target reference by a first processing core of the plurality of processing cores that is uniquely associated with a first core pool of the plurality of core pools, the target reference being the reference to a particular one of the plurality of data objects;
in response to detecting the cache miss, retrieving the target reference from a second core pool of the plurality of core pools that is uniquely associated with a second processing core of the plurality of processing cores, the second core pool being within the pool access range of the first core pool;
and
copying the target reference retrieved from the second core pool to the first core pool.

5 more elements

One or more non-transitory computer-readable media storing computer-executable instructions that, when executed by a computer system, cause the computer system to perform operations comprising:

for each data object of a plurality of data objects, storing a reference to the data object in a subset of a plurality of core pools of a software cache, each core pool of the plurality of core pools being uniquely associated with a respective processing core of a plurality of processing cores, and the storing of the reference enabling access to the reference from each of the plurality of core pools based on a pool access range;
detecting a cache miss on a target reference by a first processing core of the plurality of processing cores that is uniquely associated with a first core pool of the plurality of core pools, the target reference being the reference to a particular one of the plurality of data objects;
in response to detecting the cache miss, retrieving the target reference from a second core pool of the plurality of core pools that is uniquely associated with a second processing core of the plurality of processing cores, the second core pool being within the pool access range of the first core pool;
and
copying the target reference retrieved from the second core pool to the first core pool.

2 more elements

Dependencies are inferred from the claim text.

Core snooping cache

Life of this patent

Core snooping cache

Life of this patent

Abstract

Claims20