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platform_system_core
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4 Commits

Author SHA1 Message Date
Josh Gao 317d3e176f adb: implement zstd compression for file sync. 
Bug: http://b/150827486
Test: test_device.py
Change-Id: I9fac4c760d9dbdce0b3b883db975cfa9b27a9e80
 2020-05-28 13:00:01 -07:00
Josh Gao ec44d35fde adb: implement LZ4 compression. 
Add support for LZ4 compression, which compresses and decompresses far
more quickly than brotli, at the cost of worse compression ratio.

`adb sync -d system` speeds (in MB/s) on aosp_blueline-eng:

           none    brotli    lz4
USB 3.0     120       110    190
USB 2.0      38        75     63

Bug: https://issuetracker.google.com/150827486
Test: python3 -m unittest test_device.FileOperationsTest{Uncompressed,Brotli,LZ4}
Change-Id: Ibef6ac15a76b4e5dcd02d7fb9433cbb1c02b8382
 2020-04-02 17:11:07 -07:00
Josh Gao 49ba558aa8 adb: add interfaces for Encoder/Decoder. 
More groundwork to support more compression algorithms.

Bug: https://issuetracker.google.com/150827486
Test: python3 -m unittest test_device.FileOperationsTest{Uncompressed,Brotli}
Change-Id: I638493083b83e3f6c6854b631471e9d6b50bd79f
 2020-04-02 17:11:07 -07:00
Josh Gao 6e697f2f8c adb: move things around to prepare to add LZ4. 
Bug: https://issuetracker.google.com/150827486
Test: m adb com.android.adbd.apex
Change-Id: I038d1df4f179ddb23102016d781c9bd90da5a546
 2020-04-01 13:09:29 -07:00