QuickLZ v1.30 (final) released!

[LovePimple]

Version 1.30 final has been released
Features: Now supporting four compression levels. Level 0 is using a new algorithm which is compressing both faster and better than version 1.20, but on the cost of decompression speed.
API: Large changes - see the manual.
Backwards compatibility: 1.30 can decompress 1.20 data and 1.20 can decompress level 1, 2 and 3 of version 1.30.
Bugs fixed since previous version: None.

http://www.quicklz.com/

[Matt Mahoney]

QuickLZ tested here. http://cs.fit.edu/~mmahoney/compression/text.html# 4106

Compression with -3 is a bit worse than quick3 1.30 beta. Also, curious that -0 compresses better but slower than -1.

[Lasse Reinhold]

Hi Matt,

Thanks for testing

It's level 0 which is using the new algorithm (wrote a little about it at the bottom of http://www.c10n.info/archives/461) and level 1, 2 and 3 which are compatible with 1.20. Please fix it on your website

Level 0 is almost always faster than 1 with the -mem flag, so it must be disk I/O disturbance.

[LovePimple]

Level 0 compresses faster on my Sempron 2400+ machine...

ENWIK8 (Level 0)
Compression Time: 2.485 Seconds
Compressed Size: 52,803,919 bytes

ENWIK8 (Level 1)
Compression Time: 3.282 Seconds
Compressed Size: 57,153,015 bytes