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Thread: TC 5.1dev6 is here! [!]

  1. #1
    The Founder encode's Avatar
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    Finally, a new version of the TC file compressor has been released!

    Enjoy!

    Link:
    Download TC 5.1dev6 (41 KB)


  2. #2
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    Thanks Ilia!

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    Quick test...

    A10.jpg > 830,453

    AcroRd32.exe > 1,309,769

    english.dic > 846,314

    FlashMX.pdf > 3,697,026

    FP.LOG > 654,028

    MSO97.DLL > 1,715,743

    ohs.doc > 788,186

    rafale.bmp > 986,232

    vcfiu.hlp > 616,982

    world95.txt > 601,130


    Total = 12,045,863 bytes

  4. #4
    Guest
    very good results!

  5. #5
    The Founder encode's Avatar
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    Okay, maximumcompresison.com updated! Well, at least new TC beats:
    #033 TC 5.1 dev6
    #035 LZPX(J) 1.2g
    #037 RKIVE 1.92
    #038 SZIP 1.12
    #040 UHBC 1.0
    #042 WINZIP 11.0
    #044 SBC 0.970 rev2
    #046 M03
    #048 DARK 0.50c
    #054 PPMZ2 0.81
    #064 CABARC 1.00.0106
    #073 WinACE 2.65
    #084 BZIP2 1.0.3
    #119 PKZIP 2.50
    ...and so on.

    Also note, TC achieve such result with a small memory footprint and without any extra tuning for each file - i.e. all files packed with the same settings. Just like no other...


  6. #6
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    What next for TC?

  7. #7
    The Founder encode's Avatar
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    Well, first of all, we must look at Squeeze Chart 2006's results.

    I'm planning to release the next, dev7 version, in year 2007. In my plans improve the LZ layer (probably in some cost of compression speed) and some Fast PAQ-like engine speed improvements.


  8. #8
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    A dummy post to keep this topic at the top.


  9. #9
    Guest
    Hi Ilia

    latest TC dev 6 went to 53th place and TC dev 5 was on 60th place
    I have sent you a snapshot by email.

    Is it possible to add support for multiple CPU's in next release?
    I have bought a duoble core system but was disappointed,
    that only 3 compression programs can make use of them (even latest PAQ does not support multiple cores, so until now the second CPU is useless..


    Yours,

    Stephan Busch

  10. #10
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    Hi Stephan!

    > latest TC dev 6 went to 53th place and TC dev 5 was on 60th place
    Thank you for testing!

    > I have sent you a snapshot by email.
    I think your mail was blocked by anti-spam filter. Currently, I receive about 2000+ spam messages every single day! So, I add some additional anti-spam protection. Now any mail must contain a magic ("compression") word in a subject field. Examples:
    COMPRESSION
    compression
    Compression
    Just add to subject this word. Another Example: A letter with "TC Compression" subject will be accepted. A letter with "AMAZING COMPRESSION" subject will be also accepted. By default, if mail was blocked you must receive a notice from anti-spam filter, but some mail servers blocks this message.

    > Is it possible to add support for multiple CPU's in next release?
    Now I'm thinking about such feature. To achieve this, I must separate algorithm to a few streams instead of one, and execute each stream or thread on different CPU. Note, not all algorithms can be easily separated to paralelled streams, so maybe add such feature is just impossible. In addition, I'm planning to release a Pentium 3 and/or Pentium 4 version of TC, to use some features of them (like MMX, SSE (Streaming SIMD Extensions ), SSE3). So, like with PAQ8, this can give some nice speed improvement.


  11. #11
    Guest
    Hi Ilia,

    it would be a nice speed improvement if PAQ8 would support
    multiple cpu's, but it doesn't support that feature.
    Matt Mahoney told me that he does not know an easy way to
    make it dual core capable..


    Yours,

    Stephan

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