Memory compression for computer systems
First Claim
Patent Images
1. A method for memory operation in a computer system, comprising:
- determining when compressed data is present in non-persistent memory and;
decompressing the compressed data as decompressed data, and providing the decompressed data from the non-persistent memory for processing; and
determining when the compressed data is not present in the non-persistent memory and;
providing uncompressed data from the persistent memory for processing.
4 Assignments
0 Petitions
Accused Products
Abstract
A computer system is provided including a processor, a persistent storage device, and a main memory connected to the processor and the persistent storage device. The main memory includes a compressed cache for storing data retrieved from the persistent storage device after compression and an operating system. The operating system includes a plurality of interconnected software modules for accessing the persistent storage device and a filter driver interconnected between two of the plurality of software modules for managing memory capacity of the compressed cache and the buffer cache.
-
Citations
24 Claims
-
1. A method for memory operation in a computer system, comprising:
-
determining when compressed data is present in non-persistent memory and;
decompressing the compressed data as decompressed data, and providing the decompressed data from the non-persistent memory for processing; and
determining when the compressed data is not present in the non-persistent memory and;
providing uncompressed data from the persistent memory for processing. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method for memory operation in a computer system, comprising:
-
determining when compressed data is present in compressed cache and;
identifying buckets occupied by the compressed data and compression algorithm used to compress the compressed data, maintaining an identity of the buckets, a range of the compressed data, and the compression algorithm used, decompressing the compressed data as decompressed data, and providing the decompressed data from the compressed cache for processing; and
determining when the compressed data is not present in the compressed cache and;
providing uncompressed data from the persistent memory for processing. - View Dependent Claims (7, 8, 9, 10)
-
-
11. A computer system comprising:
-
a processor;
a persistent storage device;
a main memory connected to the processor and the persistent storage device, the main memory including;
a compressed cache for storing data retrieved from the persistent storage device after compression; and
an operating system including;
a plurality of software modules for accessing the persistent storage device, the plurality of software modules interconnected, and a filter driver for managing memory capacity of the compressed cache, the filter driver interconnected between two of the plurality of software modules. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A computer system comprising:
-
a processor;
a persistent storage device;
a main memory connected to the processor and the persistent storage device, the main memory including;
a compressed cache for storing uncompressed data retrieved from the persistent storage device as compressed data, and a buffer cache connected to the compressed cache for storing uncompressed data retrieved from the persistent storage device as uncompressed data; and
an operating system including;
a plurality of software modules for accessing the persistent storage device, the plurality of software modules being organized in a multi-layer structure, and a filter driver for managing memory capacity of the compressed cache, the filter driver interconnected between two of the plurality of software modules. - View Dependent Claims (19, 20, 21, 22, 23, 24)
-
Specification