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7-Zip 4.30 beta: Große Speicherseiten, LZMA-Optimierungen, neues SFX
7-Zip 4.30 beta nutzt ein unkomprimiertes SFX-Modul (7z.sfx), beschleunigt LZMA im Maximum-/Ultra-Modus, unterstützt LZMA-Wortgrößen bis 273, verkleinert bei kleinen Dateien das LZMA-Wörterbuch, kann große Speicherseiten (-slp) für schnelleres Komprimieren nutzen, entfernt mehrere Dateien aus dem Paket und behebt Fehler.
- Files 7zFMn.exe, 7zGn.exe, 7-zipn, 7za.exe, 7zC.sfx were removed from 7-zip package
- 7-Zip now uses uncompressed SFX: 7z.sfx
- Sfx modules 7z.sfx and 7zCon.sfx now use msvcrt.dll
- Speed optimizations in LZMA maximum/ultra compressing.
- LZMA now supports word size up to 273
- 7-Zip now reduces dictionary size for LZMA, if you compress files smaller than specified dictionary size.
- 7-Zip now can use large memory pages: GUI: 7-Zip File Manager / Options / Settings / Use large memory pages. Command line version: -slp switch. This feature allows to increase speed of compressing. But 7-Zip can make some pause at starting of compressing for allocating large pages. Also Task Manager doesn't show real memory usage of program, if 7-Zip uses large pages. This feature works only on Windows 2003 / XP x64 / Vista. Also you must have administrator's rights for your system. Recommended size of RAM: 1 GB or more. To install this feature you must run 7-Zip File Manager at least once, close it and reboot system.
- Some bugs were fixed