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Emmanuel Marty
2019-04-13 12:38:18 +02:00
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@@ -7,7 +7,7 @@ Compression ratio comparison between LZSA and other optimal packers, for a workl
Bytes Ratio Decompression speed vs. LZ4 Bytes Ratio Decompression speed vs. LZ4
ZX7 687133 53,30% 47,73% ZX7 687133 53,30% 47,73%
LZ5 1.4.1 727107 56,40% 75% LZ5 1.4.1 727107 56,40% 75%
LZSA 736539 57,13% <------ 90% LZSA 736165 57,11% <------ 90%
Lizard -29 776122 60,21% Not measured Lizard -29 776122 60,21% Not measured
LZ4_HC -19 -B4 -BD 781049 60,59% 100% LZ4_HC -19 -B4 -BD 781049 60,59% 100%
Uncompressed 1289127 100% N/A Uncompressed 1289127 100% N/A
@@ -15,13 +15,13 @@ Compression ratio comparison between LZSA and other optimal packers, for a workl
Performance over well-known compression corpus files: Performance over well-known compression corpus files:
Uncompressed LZ4_HC -19 -B4 -BD LZSA Uncompressed LZ4_HC -19 -B4 -BD LZSA
Canterbury 2810784 935827 (33,29%) 855083 (30,42%) Canterbury 2810784 935827 (33,29%) 855044 (30,42%)
Silesia 211938580 77299725 (36,47%) 73750088 (34,80%) Silesia 211938580 77299725 (36,47%) 73707039 (34,78%)
Calgary 3251493 1248780 (38,40%) 1196507 (36,80%) Calgary 3251493 1248780 (38,40%) 1196448 (36,80%)
Large 11159482 3771025 (33,79%) 3648435 (32,69%) Large 11159482 3771025 (33,79%) 3648420 (32,69%)
enwik9 1000000000 371841591 (37,18%) 355369963 (35,54%) enwik9 1000000000 371841591 (37,18%) 355360717 (35,54%)
As an example of LZSA's simplicity, a size-optimized decompressor on 8088 has been implemented in 91 bytes. As an example of LZSA's simplicity, a size-optimized decompressor on 8088 has been implemented in 92 bytes.
The compressor is approximately 2X slower than LZ4_HC but compresses better while maintaining similar decompression speeds and decompressor simplicity. The compressor is approximately 2X slower than LZ4_HC but compresses better while maintaining similar decompression speeds and decompressor simplicity.