Hello, Sorry if it's been discussed a number of times already.
Currently used LZ4 compression implementation based on svn revision r90 (at least this is what commit c72ac7a1a926 "lib: add lz4 compressor module" says) from 3rd party repository: http://lz4.googlecode.com/svn/trunk/ I just checked out that repository and lz4 now on revision r113. The svn log shows that there have been a number of performance improvements and fixes, e.g. ------------------------------------------------------------------------ r113 | yann.collet...@gmail.com | 2014-02-04 17:11:10 +0300 (Tue, 04 Feb 2014) | 5 lines Large decompression speed improvement for GCC 32-bits. Thanks to Valery Croizier ! LZ4HC : Compression Level is now a programmable parameter (CLI from 4 to 9) Separated IO routines from command line (lz4io.c) Version number into lz4.h (suggested by Francesc Alted) [..] ------------------------------------------------------------------------ r101 | yann.collet...@gmail.com | 2013-08-12 11:35:52 +0300 (Mon, 12 Aug 2013) | 9 lines Removed dependency to "lz4_encoder.h" and "lz4hc_encoder.h" Improved speed of LZ4_decompress_fast() with GCC Improved speed of LZ4_decompress_safe() for 32-bits Made the fast LZ4 compression compatible with low-memory systems (buffer address < 64K). Thanks Francois Gretief for report and suggestion. [..] and so on. I wonder does anybody keep an eye on that improvements? Is there any 'standard' procedure of backporting/cherry-picking commits from 3rd party repositories? thanks, -ss -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
