7-Zip 9.17

7-Zip 9.17 beta was released.

7-Zip for 32-bit Windows: http://downloads.sourceforge.net/sevenzip/7z917.exe
7-Zip for 64-bit Windows x64: http://downloads.sourceforge.net/sevenzip/7z917-x64.msi

What's new: - Disk fragmentation problem for ZIP archives created by 7-Zip was fixed.

Notes: 7-Zip now uses 4 MB RAM buffer as file cache, when you create ZIP archives. It reduces the number of Move_File_Position and Write_to_File operations. To ensure that new code works correctly please try to create .ZIP archives for big number of files. And then call "Test" command for these ZIP archives. Try two modes:

1) Number of threads = 1, 2) Number of threads = number of your CPU threads. Also now you can see the number of file fragments on NTFS partitions with the following way:
1) Open root folder in 7-Zip File Manager
2) Open "\\." item
3) Open disk partition
4) Look "Blocks" column for files.
or from command line: 7z l \\.\c: -slt dir1\dir2\filename

Extra package now includes 7-Zip plugin for FAR Manager x64.