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US 12,625,610 B2Granted
Data compression method and apparatus, computing device, and storage system
AssigneeHuawei Technologies Co., Ltd.
InventorsSizhe Luo, Ruliang Dong, Hongde Zhu, Yong Sun
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Abstract
In a data compression method, a computing device determines a compression feature value of to-be-compressed data based on a first parameter that affects a compression result of the to-be-compressed data. The computing device determines, based on the compression feature value, a compression policy for compressing the to-be-compressed data. The computing device then compresses the to-be-compressed data according to the compression policy to obtain compressed data, and stores the compressed data.
Claims18
A data compression method performed by a computing device, the method comprising:
- determining a compression feature value of to-be-compressed data based on a first parameter that affects a compression result of the to-be-compressed data, wherein the to-be-compressed data is to be sent by the computing device to a storage device;
- determining, based on the compression feature value, a compression policy for compressing the to-be-compressed data, wherein the compression policy comprises a plurality of compression windows;
- compressing the to-be-compressed data according to the compression policy to obtain compressed data, wherein the step of compressing the to-be-compressed data according to the compression policy comprises:
- separately compressing the to-be-compressed data based on the plurality of compression windows to obtain a plurality of pieces of compressed data;
- comparing compression rates of the plurality of pieces of compressed data;
- and
- selecting, from the plurality of pieces of compressed data based on the comparing, first compressed data with a highest compression rate as the compressed data;
- and
- sending a data packet to the storage device, wherein the data packet comprises a packet header and a payload, and the payload includes the first compressed data and a compression window of the first compressed data.
6 more elements
A computing device comprising:
- a memory storing executable instructions;
- and
- a processor configured to execute the executable instructions to perform operations of:
- determining a compression feature value of to-be-compressed data based on a first parameter that affects a compression result of the to-be-compressed data, wherein the to-be-compressed data is to be sent by the computing device to a storage device;
- determining, based on the compression feature value, a compression policy for compressing the to-be-compressed data, wherein the compression policy comprises a plurality of compression windows;
- compressing the to-be-compressed data according to the compression policy to obtain compressed data, wherein the step of compressing the to-be-compressed data according to the compression policy comprises:
- separately compressing the to-be-compressed data based on the plurality of compression windows to obtain a plurality of pieces of compressed data;
- comparing compression rates of the plurality of pieces of compressed data;
- and
- selecting, from the plurality of pieces of compressed data based on the comparing, first compressed data with a highest compression rate as the compressed data;
- and
- sending a data packet to the storage device, wherein the data packet comprises a packet header and a payload, and the payload includes the first compressed data and a compression window of the first compressed data.
9 more elements
A storage system, comprises:
- a computing node;
- and
- a storage node,
- wherein the computing node is configured to perform operations of:
- determining a compression feature value of to-be-compressed data based on a first parameter that affects a compression result of the to-be-compressed data, wherein the to-be-compressed data is to be sent by the computing node to the storage node;
- determining, based on the compression feature value, a compression policy for compressing the to-be-compressed data, wherein the compression policy comprises a plurality of compression windows;
- compressing the to-be-compressed data according to the compression policy to obtain compressed data, and storing the compressed data, wherein the step of compressing the to-be-compressed data according to the compression policy comprises:
- separately compressing the to-be-compressed data based on the plurality of compression windows to obtain a plurality of pieces of compressed data;
- comparing compression rates of the plurality of pieces of compressed data;
- and
- selecting, from the plurality of pieces of compressed data based on the comparing, first compressed data with a highest compression rate as the compressed data;
- and
- sending a data packet to the storage node, wherein the data packet comprises a packet header and a payload, and the payload includes the first compressed data and a compression window of the first compressed data;
- and
- wherein the storage node is configured to store the first compressed data.
12 more elements
Dependencies are inferred from the claim text.