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Thread: Experimental new ZCM file compressor!

  1. #121
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    thanks Nania!! It's fantastic how you improve zcm compressor! Great project!

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    Thanks !
    the previous version or the 0.60 d certainly was more powerful in some cases (TXT, XML) on single file but the mixer which corrected mistakes of probability was to limit and prediction of the paradoxes produced thereof in some cases!

  3. #123
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    Compression got a bit worse but is faster with less memory. http://mattmahoney.net/dc/text.html#1629

  4. #124
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    Quote Originally Posted by Matt Mahoney View Post
    Compression got a bit worse but is faster with less memory. http://mattmahoney.net/dc/text.html#1629
    Pratical Archiver is faster naturally !
    Thanks Matt for all test !
    Best Regards!

  5. #125
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    I tested zcm on the mingw benchmark. http://mattmahoney.net/dc/zpaq.html

    Compression with -r -m6 -t2 seems unusually slow, compared to the same options with -s, or with default (-m4 -t1). I am testing with 2 cores and 3 GB memory.

    I noticed that when I try to extract a single file from a solid (-s) archive, that it creates all of the other files in the archive but with a size of 0.

  6. #126
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    Quote Originally Posted by Matt Mahoney View Post
    I tested zcm on the mingw benchmark. http://mattmahoney.net/dc/zpaq.html

    Compression with -r -m6 -t2 seems unusually slow, compared to the same options with -s, or with default (-m4 -t1). I am testing with 2 cores and 3 GB memory.

    I noticed that when I try to extract a single file from a solid (-s) archive, that it creates all of the other files in the archive but with a size of 0.
    Thanks Matt I try to solve the problem as soon as possible.

    Regarding the normal option (not -s) is natural it is slow because it starts all system of memory every time that compresses/decompresses a file as in all CM compressor.

  7. #127
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    FIXED the problem!
    released version 0.70c full compatible with version 0.70b

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    Francesco, did you add specialised models for all the file types that you mention in the announcement or something more generic?

  9. #129
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    Quote Originally Posted by m^2 View Post
    Francesco, did you add specialised models for all the file types that you mention in the announcement or something more generic?

    ZCM currently has 6 different compression models whose main uses lots of memory and 4 mixer (TXT, XML, ISO etc) and is slower. The other five use little memory and 2 mixer and they are fast.


    Of course I have improved in speed a little all models of compression.
    Last edited by Nania Francesco; 15th October 2012 at 22:52.

  10. #130
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    Hello, I have a problem with v0.70c
    Here is the commandline output :

    Code:
    E:\Bricolage\Desktop Temporary Dir>ZCM a -t4 RefRain.zcm RefRain\*
    ZCM Archiver v.0.70c Ultra
    
    copyright (C) 2011 By Nania Francesco Antonio
    
    Demo Version
    
    multiprocess compression use 4 task
    Archive is E:\Bricolage\Desktop Temporary Dir\RefRain.zcm
     close task's active
     Compressed 276745803 bytes to 0 bytes
    As you can see, output is a 0 Byte file that disappears as soon as it is created.
    I use win 7 64Bit, have 8Go ram, processor is Intel Core i5.
    Last edited by eleria; 16th October 2012 at 15:40.

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    ZCM Archiver v.0.70c: Is there a problem with big files (11 Gbytes) ?

    trying to compress the big file results to an archivefile with 23 Gbytes

    because this i have stoped the compresssion process and i hit CTRL-C ...

    the program flashzip compress this big file without problems to a resulting archivfile with < 3 Gbytes ...

    best regards

  12. #132
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    1)

    Quote Originally Posted by joerg View Post
    ZCM Archiver v.0.70c: Is there a problem with big files (11 Gbytes) ?

    trying to compress the big file results to an archivefile with 23 Gbytes

    because this i have stoped the compresssion process and i hit CTRL-C ...

    the program flashzip compress this big file without problems to a resulting archivfile with < 3 Gbytes ...

    best regards
    Fixed the problem with the new version ... ZCM Archiver v.0.70d (is online) ! Thanks joerg !


    2)

    E:\Bricolage\Desktop Temporary Dir>ZCM a -t4 RefRain.zcm RefRain\*
    ZCM Archiver v.0.70c Ultra

    copyright (C) 2011 By Nania Francesco Antonio

    Demo Version

    multiprocess compression use 4 task
    Archive is E:\Bricolage\Desktop Temporary Dir\RefRain.zcm
    close task's active
    Compressed 276745803 bytes to 0 bytes
    The problem is the space in the folder E:\Bricolage\Desktop Temporary Dir\RefRain.zcm ... rename
    (-> E:\Bricolage\DesktopTemporaryDir\ ) and zcm work with -t4 option ! with the next version I will try to fix it!
    Hi!
    Last edited by Nania Francesco; 16th October 2012 at 18:07.

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    Thanks Nania Francesco your trick with removing the space worked, but I have another problem. ZCM is stuck in task 4 (RefRain.zcm4).

    I used the following command parameters :
    Code:
     ZCM a -t4 -m7 RefRain.zcm RefRain\*
    So I tried using CTRL + C to close the last task.

    (Oh and the files I'm trying to compress are
    Code:
    RefRain_1000.bin
    RefRain_1000.cue
    When I list the archive contents I get the following instead of those two files :
    Code:
    E:\Bricolage\DesktopTemporaryDir>ZCM l RefRain.zcm
    Archive List ... E:\Bricolage\DesktopTemporaryDir\RefRain.zcm
    RefRain/RefRain_1000.bin
    RefRain/RefRain_1000.bin
    RefRain/RefRain_1000.cue
    RefRain/RefRain_1000.bin
    RefRain/RefRain_1000.bin
     n.5 files in archive E:\Bricolage\DesktopTemporaryDir\RefRain.zcm
    If you need the file that seems to pose a problem (RefRain_1000.bin) I can upload it to a file host, around 260 Mo uncompressed.

    Edit : Every time I try it's another task that's stuck.
    Last edited by eleria; 16th October 2012 at 19:45.

  14. #134
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    @Eleria
    As I told you I don't understand why you go directly in the folder you want to compress when you collapse it directly from "c:\" where to put Zcm.exe. It gives you problems with task 4 test with one and see if it works. Failing here directly the program can't figure out quite what happens.

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    Thanks for the answer.

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    Quote Originally Posted by Nania Francesco View Post
    @Eleria
    As I told you I don't understand why you go directly in the folder you want to compress when you collapse it directly from "c:\" where to put Zcm.exe. It gives you problems with task 4 test with one and see if it works. Failing here directly the program can't figure out quite what happens.
    Put long filename with spaces between quotes and it will work.

    "E:\Bricolage\Desktop Temporary Dir\ZCM" a -t4 "E:\Bricolage\Desktop Temporary Dir\RefRain.zcm" RefRain\*

  17. #137
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    Quote Originally Posted by jimbow View Post
    Put long filename with spaces between quotes and it will work.

    "E:\Bricolage\Desktop Temporary Dir\ZCM" a -t4 "E:\Bricolage\Desktop Temporary Dir\RefRain.zcm" RefRain\*
    Thanks Jimbow for the solution !

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    I ran a few tests and ...
    With 1-2-3 task and method 7 it works without any problem.
    With 4 tasks and method 4 it works without any problem.
    But with 4 tasks and method 7 it gets stuck. (I left it running during the night and still it didn't complete)

  19. #139
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    Quote Originally Posted by eleria View Post
    I ran a few tests and ...
    With 1-2-3 task and method 7 it works without any problem.
    With 4 tasks and method 4 it works without any problem.
    But with 4 tasks and method 7 it gets stuck. (I left it running during the night and still it didn't complete)
    I use win 7 64Bit, have 8Go ram, (not 8Go free!) processor is Intel Core i5.
    [1 tasks and method 7] = 1.7GB (normal)
    [2 tasks and method 7] = 2*1.7GB = 3,4GB of memory free ! (fast)
    [3 tasks and method 7] = 3*1.7GB = 5,1GB of memory free ! (fast ?)
    [4 tasks and method 7] = 4*1.7GB = 6,8GB of memory free ! (very slow)

    for me the best option with 8GB of memory :
    -t4 -m6 !
    Last edited by Nania Francesco; 17th October 2012 at 12:12.

  20. #140
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    Okay I may not have 6.8 GB of free memory but then wouldn't it be best if you implemented a memory check to see if enough memory is available, and if not you return an error. Because as of now, there is simply no way to tell it's a memory problem, the compression task simply goes on forever, It just looks like a bug.
    Last edited by eleria; 18th October 2012 at 10:56.

  21. #141
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    @nania

    ZCM 070D works well now
    - and compresses better then flashzip
    what about to implement the very fast compression algorithm from "rings 1.3" / "rings 1.5" into within ZCM ?

    for now (for me) ZCM is THE best NEW COMPRESSOR 2012

    best regards

  22. #142
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    Hello Nania,

    I really like your ZCM , but I have to report a bug in the latest ZCM 0.70d :
    First is maybe not a bug, but a feature : it seems that ZCM is case sensitive when handling files.
    See below : apparently "win.7z" is not handled the same as "Win.7z" ?
    Why is that ? I think if ZCM runs under Windows, it should follow the behaviour from the OS, which is case insensitive.

    Second is the reporting at the end from the uncompressed size of the file(s) that has been compressed.
    As you can see below Win.7z is 4.328.441.959 bytes, not 33.474.663 bytes as reported by ZCM.

    Code:
    K:\VMImages>timer zcm7 a -m7 -t6 win_zcm7__m7_t6.zcm win.7z
    Timer 9.01 : Igor Pavlov : Public domain : 2009-05-31
    ZCM Archiver v.0.70d Ultra
    copyright (C) 2011 By Nania Francesco Antonio
    Demo Version
    multiprocess compression use 6 task
    Archive is K:\VMImages\win_zcm7__m7_t6.zcm
    WARNING: No files close task's active
     Compressed 0 bytes to 0 bytes
    
    Kernel Time  =     0.000 =    0%
    User Time    =     0.015 =   49%
    Process Time =     0.015 =   49%
    Global Time  =     0.031 =  100%
    
    K:\VMImages>timer zcm7 a -m7 -t6 win_zcm7__m7_t6.zcm  Win.7z
    Timer 9.01 : Igor Pavlov : Public domain : 2009-05-31
    ZCM Archiver v.0.70d Ultra
    copyright (C) 2011 By Nania Francesco Antonio
    Demo Version
    multiprocess compression use 6 task
    Archive is K:\VMImages\win_zcm7__m7_t6.zcm
     close task's active
     Compressed 33474663 bytes to 1097381732 bytes
    
    Kernel Time  =   229.711 =   67%
    User Time    =   110.074 =   32%
    Process Time =   339.785 =   99%
    Global Time  =   340.009 =  100%
    
    K:\VMImages>dir win.7z
     Volume in drive K is Raid 6
     Volume Serial Number is CA19-B985
    
     Directory of K:\VMImages
    
    20/04/2012  21:54     4.328.441.959 Win.7z
                   1 File(s)  4.328.441.959 bytes
                   0 Dir(s)  18.490.705.346.560 bytes free

  23. #143
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    ZCM 0.80 released!

    For extreme compression !

    News:
    - More faster in compression/decompression!
    - More stable !
    - Improved better compression for BMP/PPM/PNG/MP3/WMA/JPG/MOV/AVI/WMV/TXT/DOC etc. etc.!

    Only from:
    http://heartofcomp.altervista.org/
    Last edited by Nania Francesco; 15th May 2013 at 21:50.

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  25. #144
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    Input ramdisk:
    299,627,772 bytes - html file

    Output ramdisk:
    40,644,114 bytes, 43.005 sec. - 43.777, zcm7 - 0
    40,066,758 bytes, 44.618 sec. - 45.579, zcm8 - 0

    30,037,304 bytes, 46.683 sec. - 47.167, zcm7 - 7
    29,747,525 bytes, 48.521 sec. - 49.082, zcm8 - 7

    1 thread

    Output ramdisk:
    41,105,392 bytes, 10.500 sec. - 9.996, zcm7 - 0
    40,698,109 bytes, 10.129 sec. - 10.282, zcm8 - 0

    33,738,319 bytes, 11.630 sec. - 11.438, zcm7 - 7
    33,475,527 bytes, 12.352 sec. - 11.602, zcm8 - 7

    8 threads

  26. #145
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    Tested 8 threads via winzpaq benchmark and sorted by bytes:

    41,105,392 bytes, 9.881 sec. - 10.080 sec., ZCM7 - 0
    40,698,109 bytes, 10.337 sec. - 10.310 sec., ZCM8 - 0
    39,027,759 bytes, 10.065 sec. - 10.274 sec., ZCM7 - 1
    38,652,471 bytes, 10.552 sec. - 10.294 sec., ZCM8 - 1
    37,306,256 bytes, 10.279 sec. - 10.206 sec., ZCM7 - 2
    37,029,442 bytes, 10.657 sec. - 10.475 sec., ZCM8 - 2
    36,053,711 bytes, 10.399 sec. - 10.174 sec., ZCM7 - 3
    35,799,807 bytes, 10.213 sec. - 10.424 sec., ZCM8 - 3
    35,028,838 bytes, 9.932 sec. - 10.245 sec., ZCM7 - 4
    34,782,812 bytes, 10.394 sec. - 10.424 sec., ZCM8 - 4
    34,318,775 bytes, 10.512 sec. - 10.239 sec., ZCM7 - 5
    34,073,594 bytes, 10.673 sec. - 10.735 sec., ZCM8 - 5
    33,914,376 bytes, 10.991 sec. - 10.785 sec., ZCM7 - 6
    33,738,319 bytes, 11.618 sec. - 11.185 sec., ZCM7 - 7
    33,660,498 bytes, 11.448 sec. - 10.705 sec., ZCM8 - 6
    33,475,527 bytes, 11.985 sec. - 11.872 sec., ZCM8 - 7
    Last edited by Sportman; 16th May 2013 at 01:17.

  27. #146
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    TEST Maximum comression option -m7 -s

    ZCM Archiver v.0.60d Ultra
    compress.. c:/test/MSO97.DLL 3782416 to 1519363
    compress.. c:/test/FP.LOG 20617071 to 369372
    compress.. c:/test/rafale.bmp 4149414 to 719094
    compress.. c:/test/english.dic 4067439 to 532786
    compress.. c:/test/ohs.doc 4168192 to 743233
    compress.. c:/test/AcroRd32.exe 3870784 to 1124011
    compress.. c:/test/vcfiu.hlp 4121418 to 504327
    compress.. c:/test/A10.jpg 842468 to 828322
    compress.. c:/test/FlashMX.pdf 4526946 to 3662161
    compress.. c:/test/world95.txt 2988578 to 440305
    Compressed 53134726 bytes to 10442974 bytes
    Kernel Time = 0.421 = 00:00:00.421 = 2%
    User Time = 15.350 = 00:00:15.350 = 97%
    Process Time = 15.771 = 00:00:15.771 = 100%
    Global Time = 15.771 = 00:00:15.771 = 100%


    ZCM Archiver v.0.70d Ultra
    compress.. c:/test/MSO97.DLL 3782416 to 1521055
    compress.. c:/test/FP.LOG 20617071 to 381773
    compress.. c:/test/rafale.bmp 4149414 to 723859
    compress.. c:/test/english.dic 4067439 to 537835
    compress.. c:/test/ohs.doc 4168192 to 743375
    compress.. c:/test/AcroRd32.exe 3870784 to 1126931
    compress.. c:/test/vcfiu.hlp 4121418 to 504828
    compress.. c:/test/A10.jpg 842468 to 825680
    compress.. c:/test/FlashMX.pdf 4526946 to 3662739
    compress.. c:/test/world95.txt 2988578 to 441060
    Compressed 53134726 bytes to 10469135 bytes
    Kernel Time = 0.390 = 00:00:00.390 = 2%
    User Time = 15.537 = 00:00:15.537 = 97%
    Process Time = 15.927 = 00:00:15.927 = 99%
    Global Time = 15.928 = 00:00:15.928 = 100%


    ZCM Archiver v.0.80, Extreme.
    compress.. c:/test/MSO97.DLL 3782416 to 1512807
    compress.. c:/test/FP.LOG 20617071 to 369235
    compress.. c:/test/rafale.bmp 4149414 to 712185
    compress.. c:/test/english.dic 4067439 to 531629
    compress.. c:/test/ohs.doc 4168192 to 741504
    compress.. c:/test/AcroRd32.exe 3870784 to 1118344
    compress.. c:/test/vcfiu.hlp 4121418 to 500889
    compress.. c:/test/A10.jpg 842468 to 821699
    compress.. c:/test/FlashMX.pdf 4526946 to 3658691
    compress.. c:/test/world95.txt 2988578 to 441206
    Compressed 53134726 bytes to 10408189 bytes
    Kernel Time = 0.327 = 00:00:00.327 = 2%
    User Time = 15.818 = 00:00:15.818 = 97%
    Process Time = 16.146 = 00:00:16.146 = 99%
    Global Time = 16.162 = 00:00:16.162 = 100%

  28. #147
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    I tested zcm 0.80 on LTCB and the mingw benchmark. On LTCB, I ran under Wine on a 4 hyperthread Linux machine. I found that -t2 (2 threads) is faster than -t1 but compresses worse. It also decompresses faster if you specify -t2 during decompression. Compression is improved over v0.70 but still not as good as v0.60. http://mattmahoney.net/dc/text.html#1629

    However I found when testing mingw on a 2 core Windows machine that -t2 is slower than -t1 for both compression and decompression (besides compressing worse). Also, solid mode (-s) not only compresses better but is faster, even for incremental updates. I did not think to test -t1 with 0.70 but you can compare the -t2 results to see some improvement with 0.80.

    Code:
    Archiver          Create mingw44   Time  Add mingw45   Time Extract (CPU)  Free Open Spec 
    -------           --------------  -----  -----------   ---- ------- -----  ---- ---- ----
    uncompressed         116,655,760         276,348,369
    
    zcm 0.70b
    zcm -r        (Win32) 45,023,374  295.6  119,406,152  333.5  296.8         Yes  No   No
    zcm -r -m6 -t2        45,016,499  848.5  119,468,648  937.6  356.5
    zcm -r -m6 -t2 -s     38,185,975   86.5   77,156,914   98.0  153.4
    
    zcm 0.80
    zcm -r        (Win32) 45,004,528  276.8  119,374,717  313.3  298.4         Yes  No   No
    zcm -r -m6 -t2 -s     38,021,034   94.2   78,026,436  118.2  175.3
    zcm -r -m6 -t1 -s     36,174,231   68.5   73,968,725   93.2  161.0
    zcm -r -m7 -t1 -s     36,115,632   86.0   73,846,883  101.6  176.9
    It looks like with -t2 that there are 3 processes running. 2 of these use lots of memory (I guess to compress or decompress), but there is one that uses very little memory but that reads many GB of input and uses a large amount of kernel time. 0.70 also did this.

  29. #148
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    Thanks Matt for all the tests that he played. With this version I wanted to try the limits of ZCM compression which is still immature and not very stable with certain types or groups of files. I'm working on a compact, fast and stable. Hopefully happen soon!

  30. #149
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    I suggest using threads instead of processes (and I guess polling) to get better performance. In zpaq.cpp you can see some code that is portable between Windows threads and Linux pthreads.

  31. #150
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    ZCM 0.88 released!

    For unreal compression !

    News:
    - New CM core!
    - More faster in compression/decompression!
    - More stable !
    - Improved better compression for BMP/PPM/PNG/MP3/WMA/JPG/MOV/AVI/WMV/(TXT?)/(WAV?)/DOC etc. etc.!

    Only from:
    http://heartofcomp.altervista.org/

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