Dynamic data compression selection

Patent metadata

Field	Value
Publication number	US-10320415-B2
Application number	US-201816144303-A
Country	US
Kind code	B2
Filing date	Sep 27, 2018
Priority date	Mar 6, 2015
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

Aspects of dynamic data compression selection are presented. In an example method, as uncompressed data chunks of a data stream are compressed, at least one performance factor affecting selection of one of multiple compression algorithms for the uncompressed data chunks of the data stream may be determined. Each of the multiple compression algorithms may facilitate a different expected compression ratio. One of the multiple compression algorithms may be selected separately for each uncompressed data chunk of the data stream based on the at least one performance factor. Each uncompressed data chunk may be compressed using the selected one of the multiple compression algorithms for the uncompressed data chunk.

First claim

The invention claimed is:

1. A method for data compression, the method comprising:
receiving uncompressed source data at a data compression system from a data storage device, the uncompressed source data comprising a set of data chunks; and
streaming source data to a data target by, for each data chunk of at least some of the set of data chunks:
identifying a compression algorithm to use to compress the data chunk based on at least one performance factor, the compression algorithm being of a plurality of compression algorithms;
compressing the data chunk using the compression algorithm, wherein different compression algorithms are used to compress at least two of the set of data chunks; and
routing the compressed data chunk to the data target.

2. The method of claim 1 , wherein each of at least two of the different compression algorithms are associated with different expected compression ratios.

3. The method of claim 1 , wherein at least one of the different compression algorithms includes a lossless data compression algorithm.

4. The method of claim 1 , wherein streaming the source data includes transmitting a data file, data file folder, data container or data structure over a period of time.

5. The method of claim 1 , wherein the identification of the compression algorithm is performed intermittently during the streaming of the source data, and wherein the at least some of the set of data chunks includes an incomplete subset of the set of data chunks, and wherein the method further comprises, for each other data chunk of at least some other of the set of data chunks:
compressing the data chunk using a previously selected compression algorithm that was identified for use to compress another data chunk of the set of data chunks; and
routing the compressed data chunk to the data target.

6. The method of claim 1 , wherein the performance factor includes a compression ratio of at least one previously compressed data chunk of the set of data chunks, a current network throughput associated with the streaming source data and/or a current processor utilization of the data source.

7. The method of claim 1 , wherein the performance factor includes:
a depth, fullness or emptiness of a buffer within the data source
a depth, fullness or emptiness of a queue within the data source; and/or
an amount, number or percentage of a resource that is available within the data source.

8. A computer-program product tangibly embodied in a non-transitory machine-readable storage medium, including instructions configured to cause one or more data processors to perform actions including:
receiving uncompressed source data at a data compression system from a data storage device, the uncompressed source data comprising a set of data chunks; and
streaming source data to a data target by, for each data chunk of at least some of the set of data chunks:
identifying a compression algorithm to use to compress the data chunk based on at least one performance factor, the compression algorithm being of a plurality of compression algorithms;
compressing the data chunk using the compression algorithm, wherein different compression algorithms are used to compress at least two of the set of data chunks; and
routing the compressed data chunk to the data target.

9. The computer-program product of claim 8 , wherein each of at least two of the different compression algorithms are associated with different expected compression ratios.

10. The computer-program product of claim 8 , wherein at least one of the different compression algorithms includes a lossless data compression algorithm.

11. The computer-program product of claim 8 , wherein streaming the source data includes transmitting a data file, data file folder, data container or data structure over a period of time.

12. The computer-program product of claim 8 , wherein the identification of the compression algorithm is performed intermittently during the streaming of the source data, and wherein the at least some of the set of data chunks includes an incomplete subset of the set of data chunks, and wherein the actions further include, for each other data chunk of at least some other of the set of data chunks:
compressing the data chunk using a previously selected compression algorithm that was identified for use to compress another data chunk of the set of data chunks; and
routing the compressed data chunk to the data target.

13. The computer-program product of claim 8 , wherein the performance factor includes a compression ratio of at least one previously compressed data chunk of the set of data chunks, a current network throughput associated with the streaming source data and/or a current processor utilization of the data source.

14. The computer-program product of claim 8 , wherein the performance factor includes:
a depth, fullness or emptiness of a buffer within the data source
a depth, fullness or emptiness of a queue within the data source; and/or
an amount, number or percentage of a resource that is available within the data source.

15. A system for data compression including:
one or more data processors; and
a non-transitory computer readable storage medium containing instructions which when executed on the one or more data processors, cause the one or more data processors to perform actions including:
receiving uncompressed source data at a data compression system from a data storage device, the uncompressed source data comprising a set of data chunks; and
streaming source data to a data target by, for each data chunk of at least some of the set of data chunks:
identifying a compression algorithm to use to compress the data chunk based on at least one performance factor, the compression algorithm being of a plurality of compression algorithms;
compressing the data chunk using the compression algorithm, wherein different compression algorithms are used to compress at least two of the set of data chunks; and
routing the compressed data chunk to the data target.

16. The system of claim 15 , wherein each of at least two of the different compression algorithms are associated with different expected compression ratios.

17. The system of claim 15 , wherein at least one of the different compression algorithms includes a lossless data compression algorithm.

18. The system of claim 15 , wherein streaming the source data includes transmitting a data file, data file folder, data container or data structure over a period of time.

19. The system of claim 15 , wherein the identification of the compression algorithm is performed intermittently during the streaming of the source data, and wherein the at least some of the set of data chunks includes an incomplete subset of the set of data chunks, and wherein the actions further include, for each other data chunk of at least some other of the set of data chunks:
compressing the data chunk using a previously selected compression algorithm that was identified for use to compress another data chunk of the set of data chunks; and
routing the compressed data chunk to the data target.

20. The system of claim 15 , wherein the performance factor includes a compression ratio of at least one previously compressed data chunk of the set of data chunks, a current network throughput associated with the streaming source data and/or a current processor utilization of the data source.

Assignees

• Oracle Int Corp

Inventors

• Nam Young Jin
• Dailey Aaron James
• Forte John

Classifications

• H03M7/30

  Compression (speech analysis-synthesis for redundancy reduction G10L19/00; for image communication H04N); Expansion; Suppression of unnecessary data, e.g. redundancy reduction · CPC title

• H03M7/6094 Primary

  according to reasons other than compression rate or data type · CPC title

• H03M7/6011

  Encoder aspects · CPC title

• H03M7/6082

  Selection strategies · CPC title

• H03M7/607

  Selection between different types of compressors · CPC title