7-Zip - Optimized compression



  • First time in 7-Zip - Optimized compression that automatically selects best method between lzma and ppmd, for up to 40% smaller archive size….
    How it work? Should I on “optimized compression” in 7-zip profile?


  • conexware

    yes, turn it on… it will be fine tuned by the end of beta period and automatic, but for now you have to manually turn it on.

    It detects file and determines if it is better to use PPMd/LZMA on file by file basis, something that 7zip currently does not do. PPMD is only used for text files as thats where it is better than LZMA.

    First time this has been done in any 7zip app.


  • conexware

    p.s. anyone else likes 7zip updates? Update, Rename, Delete files from archives, filename encryption support and optimized compression?

    More to come in upcoming months :-).

    And who says Standard users arent getting anything? 😛



  • @spwolf:

    yes, turn it on… it will be fine tuned by the end of beta period and automatic, but for now you have to manually turn it on.

    It detects file and determines if it is better to use PPMd/LZMA on file by file basis, something that 7zip currently does not do. PPMD is only used for text files as thats where it is better than LZMA.

    First time this has been done in any 7zip app.

    hmm… strange…i think it only activate PPMd compr.


  • conexware

    @deity:

    hmm… strange…i think it only activate PPMd compr.

    no, it does what I said it does 🙂



  • @spwolf:

    no, it does what I said it does 🙂

    ok



  • i think it only activate PPMd compr.

    b2 just contains outdated tooltip for this option, remained from old versions where Enable PPMD checkbox was at this place. hopefully, this tooltip will be fixed before release



  • @bulat:

    i think it only activate PPMd compr.

    b2 just contains outdated tooltip for this option, remained from old versions where Enable PPMD checkbox was at this place. hopefully, this tooltip will be fixed before release

    thanks again for explanation


 

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