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Thread: MONSTER OF COMPRESSION - New Benchmark

  1. #211
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    Hello Nania

    I wish i could submit you a newer version of LZP2, which is available at this website :
    http://phantasie.tonempire.net/utili...ws-t86.htm#133

    The compression rate is improved at a negligible speed cost, so it may fare better.
    Note that it doesn't change the whole picture : LZP2 is still a too-fast compressor, with a too low compression rate. Well, it is its category


    Regards

  2. #212
    Member Fu Siyuan's Avatar
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    Quote Originally Posted by Cyan View Post
    Hello Nania

    I wish i could submit you a newer version of LZP2, which is available at this website :
    http://phantasie.tonempire.net/utili...ws-t86.htm#133

    The compression rate is improved at a negligible speed cost, so it may fare better.
    Note that it doesn't change the whole picture : LZP2 is still a too-fast compressor, with a too low compression rate. Well, it is its category


    Regards
    Quick test on enwik9 with
    Athlon X2 4000+ (2.10GHz) 2GB DDR800 Windows XP SP2

    R:\>f:\d\timer r:\lzp2 f:\d\t\enwik9 f:\enwik9.lzp2

    Timer 8.00 : Igor Pavlov : Public domain : 2008-11-25
    LZP2 Oct 10 2009, compression software by Yann Collet
    Compressed Size : 598076398 (59.81%)
    Compression Time : 6.85s ==> 146MB/s
    Total Time : 107.31s ( Read wait : 76.52s // Write wait : 23.93s )

    Kernel Time = 2.265 = 00:00:02.265 = 2%
    User Time = 6.828 = 00:00:06.828 = 6%
    Process Time = 9.093 = 00:00:09.093 = 8%
    Global Time = 107.312 = 00:01:47.312 = 100%

    R:\>f:\d\timer -u f:\enwik9.lzp2 c:\enwik9out

    Timer 8.00 : Igor Pavlov : Public domain : 2008-11-25

    Can't find program. Error code = 2

    R:\>f:\d\timer r:\lzp2 -u f:\enwik9.lzp2 c:\enwik9

    Timer 8.00 : Igor Pavlov : Public domain : 2008-11-25
    LZP2 Oct 10 2009, compression software by Yann Collet
    Regenerated Size : 1000000000 Bytes
    Decoding Time : 4.08s ==> 244MB/s
    Total Time : 87.44s ( Read wait : 50.35s // Write wait : 33.01s )

    Kernel Time = 3.031 = 00:00:03.031 = 3%
    User Time = 4.031 = 00:00:04.031 = 4%
    Process Time = 7.062 = 00:00:07.062 = 8%
    Global Time = 87.441 = 00:01:27.441 = 100%

    R:\>
    Data No error

  3. #213
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    Nania Francesco's Avatar
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    OK! No problem!

    there are no problems, I add LZP2 in the next release!

  4. #214
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    Help!

    LZP2 crash in file *.DLL compression! Please verify!

  5. #215
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    Thanks for the testings

    I've investigated from your bug report and finally found a file on which the error condition can be reproduced.
    It's a pretty obvious flaw in end-condition testing. I'm surprised it never happened on my previous set of test files...
    Anyway, this is corrected.

    An updated version is available at website,
    http://lzp2.dnsalias.com

    [Edit] : the new end-condition had a remaining bug, resulting in decompressed file slightly altered under a certain set of conditions (mostly affecting large *.exe files). This is corrected. The direct-link is therefore removed, so that you get the updated version from website
    Last edited by Cyan; 10th October 2009 at 19:45.

  6. #216
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    LZP2 work!

    MOC test passed for LZP2 0.7c ! Hi!

  7. #217
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    thanks !

    minor comment : as i notice you provide a flag of author's country in your charts, note that i'm actually leaving in France, not US (yet)
    Last edited by Cyan; 11th October 2009 at 21:03.

  8. #218
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    LZP2 makes the Pareto frontier on LTCB. http://mattmahoney.net/dc/text.html

  9. #219
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    OK! No problem!

    Excuse moi ! Naturellement vive la France!

  10. #220
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    Exclamation

    Ciao nania!! Anche tu italiano?

  11. #221
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    Ciao!

    Si anche io sono italiano !
    Yes! I am Italian!

  12. #222
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    LAST MOC UPADTE OF 2009

    Last MOC 2009 update is on-line ! enjoy!

  13. #223
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    btw, please try to use -m9d option instead of -m9x - it should be more efficient (-m9x uses more memory for decompression what's fine for "best decomporession efficiency" benchmarks)

  14. #224
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    M03 didn't make the list?


  15. #225
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    NEW MOC COMPETITION IN PROCESS!

    Sincerely they are at work for the new MOC that from 2010 will be always the same group of files and I hope for a lot of time doesn't change! If I have some time I adjourn your applications!

  16. #226
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    Please Help me!

    I have need your help (a list of particular files also) that would like to insert in the new MOC 2010! I will also choose among the links of file free that will give me! Hi thanks!
    LIMIT of MOC 2010 2GB!

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