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LZMA2 (7zip) compression of transferred data files
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Send message Joined: 11 Jan 17 Posts: 1 Credit: 528,999 RAC: 0 |
Did a compression test of the content of some of the .gz data files stored by CPDN. LZMA2 seems to halve the space used and transferred. I wish LZMA2 compression. |
Send message Joined: 10 May 19 Posts: 8 Credit: 30,476 RAC: 0 |
The uploaded file is already compressed in zip format / Deflate compression algorithm, the compression rate(compressed file size/original data size) is about 66.09%. During my own compress test, compressing using LZMA2 with "best quality" and "solid" configured achieved a better (but not MUCH better) compression rate (53.74%), and the CPU time used in the compression process is much more(11 seconds for DEFLATE, and 41.9 seconds for LZMA2, tested on i7-6500U). |
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