![]() Minor speed optimizations in multithreaded LZMA/LZMA2 compression for Normal/Maximum/Ultra.Fast level (-mx3) : hc5 match finder with 4 MB dictionary.Fastest level (-mx1) : hc5 match finder with 256 KB dictionary.The compression ratio was improved for Fast and Fastest compression levels with the.That can work faster than bt4 and hc4 match finders for the data with big redundancy. 7-Zip now supports new optional match finders for LZMA/LZMA2 compression: bt5 and hc5,.To modify "Last Access Time" property of source files for archiving and hashing operations. If the switch -ssp is specified, 7-Zip doesn't allow the system The speed of PPMd compressing/decompressing was increased for 7z/ZIP/RAR archives.It allows to increase the compression speed for big 7z archives, if there is a big number The default number of LZMA2 chunks per solid block in 7z archive was increased to 64.
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