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Thread: my stuff on github

  1. #1
    Administrator Shelwien's Avatar
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    my stuff on github

    https://github.com/Shelwien

    Added ppmd_sh for now.
    Please tell me what else from http://nishi.dreamhosters.com/u , http://nishi.dreamhosters.com/ , http://ctxmodel.net , etc
    would you like to see there?

  2. Thanks (9):

    Bulat Ziganshin (2nd September 2016),Cyan (3rd September 2016),encode (12th September 2016),Gonzalo (2nd September 2016),inikep (2nd September 2016),joerg (2nd September 2016),RamiroCruzo (3rd September 2016),schnaader (2nd September 2016),Stephan Busch (2nd September 2016)

  3. #2
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    can you please upload a windows binary for testing here?

    interesting to see for me on github
    you interesting "plzma = parallel lzma" - and - your "parcoder" (but the program seems not to work under my windows 10)

    best regards

  4. #3
    Administrator Shelwien's Avatar
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    > can you please upload a windows binary for testing here?

    https://github.com/Shelwien/ppmd_sh/releases
    http://nishi.dreamhosters.com/u/ppmd_sh9.rar

    These are actually different, so you can compare them :)

    > you interesting "plzma = parallel lzma"

    "plzma" is not from parallel lzma, unfortunately, its just lzma with added lzmarec entropy coder -
    basically slower lzma with 1-2% better compression.
    But I guess you can test plzma4 in http://nishi.dreamhosters.com/u/7zdll_v5.rar - that one is MT (lzmarec mode with :a=1)

    > and - your "parcoder" (but the program seems not to work under my windows 10)

    Do you mean http://compression.ru/sh/parcoder.rar ?
    No wonder it doesn't work, its from 2001.
    Here, I updated it and uploaded: http://nishi.dreamhosters.com/u/ParCoder.rar
    But again, its not MT, or fast. Its just a demo of rangecoder interleaving, using multiple files.

    There's also a more modern implementation of that - http://nishi.dreamhosters.com/u/vecrc_v0.rar
    Also I have psrc, which actually uses two threads, at last. But the source I have for psrc is kinda too complicated for a demo...

  5. Thanks (4):

    Dimitri (12th September 2016),joerg (3rd September 2016),Nania Francesco (3rd September 2016),RamiroCruzo (3rd September 2016)

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    Member Dimitri's Avatar
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    hello, can you make this http://nishi.dreamhosters.com/u/7zdll_v5.rar into one static exe ?

    thanks in advance

  7. #5
    Administrator Shelwien's Avatar
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    Here's v6: http://nishi.dreamhosters.com/u/7zv6.exe
    If you have specific requests (like x86 or plzma2), please tell in advance.

  8. Thanks:

    Dimitri (12th September 2016)

  9. #6
    Member Dimitri's Avatar
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    i added some non default settings also increased block by some margin, 7z a -mx=9 -bb3 -mm=plzma2:mt=6:c=10000m:a=1:d128m:fb=273:mc=100000 000:lc=4:lp=0 data.7z data.dat

    i use plzma2 x64 but i think it has some problem regarding its stdin and stdout ....

  10. #7
    Administrator Shelwien's Avatar
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    10G block? that's just weird, why use plzma2 then? there's non-MT plain plzma.
    Which is also in http://nishi.dreamhosters.com/u/plzma_v3c.rar btw

  11. #8
    Member Dimitri's Avatar
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    plzma2 is plain fast plus i like testing this, here is what i did long time ago custom compile 7z with zstd and lzham support.


    at the moment i use this:


    [External compressor:lzma2]
    header = 0
    packcmd = 7z a -txz -an -m1=lzma2:d512m:fb=273:mf=bt4:mc=100000000:lc=4:lp= 0 -mmt=2 -mx9 -si -so <stdin> <stdout>
    unpackcmd = 7z x -txz -an -y -si -so <stdin> <stdout>

    xz has true stdout, but it lacks MT decompression which is a problem.
    Attached Files Attached Files

  12. Thanks:

    RamiroCruzo (12th September 2016)

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