Results 1 to 8 of 8

Thread: qpress 0.37 (quicklz 1.4.1 beta 2) optimized compile

  1. #1
    Member
    Join Date
    May 2009
    Location
    Europe
    Posts
    67
    Thanks
    0
    Thanked 1 Time in 1 Post

    qpress 0.37 (quicklz 1.4.1 beta 2) optimized compile

    qpress 0.37

    Official binary:
    Code:
    qpress.exe -mL1P4 enwik500
    Compressed 500,000,000 bytes into 244,191,350 (48.8%) at 412.5 MiB/s
    Decompressed at 423.9 MiB/s
    
    qpress.exe -mL2P4 enwik500
    Compressed 500,000,000 bytes into 212,995,229 (42.6%) at 190.7 MiB/s
    Decompressed at 328.2 MiB/s
    
    qpress.exe -mL3P4 enwik500
    Compressed 500,000,000 bytes into 208,233,636 (41.6%) at 45.3 MiB/s
    Decompressed at 735.3 MiB/s
    Optimized build:
    Code:
    qpress.exe -mL1P4 enwik500
    Compressed 500,000,000 bytes into 244,191,350 (48.8%) at 412.5 MiB/s
    Decompressed at 423.9 MiB/s
    
    qpress.exe -mL2P4 enwik500
    Compressed 500,000,000 bytes into 212,995,229 (42.6%) at 200.8 MiB/s
    Decompressed at 381.5 MiB/s
    
    press.exe -mL3P4 enwik500
    Compressed 500,000,000 bytes into 208,233,636 (41.6%) at 52.9 MiB/s
    Decompressed at 772.8 MiB/s
    Improvements vary from 0 (level 1) to 16% (level 3 compression or level 2 decompression)

    This build should work correctly but have NOT been thoroughly tested. Then use it at your own risk.

    Please do NOT report any crashes, bugs, or any other problems to the author.
    Last edited by M4ST3R; 14th September 2009 at 23:22.

  2. #2
    Member
    Join Date
    Aug 2009
    Location
    Bari
    Posts
    74
    Thanks
    1
    Thanked 1 Time in 1 Post
    Superfast, but also bad compression. Good for be the first version!

  3. #3
    Tester
    Black_Fox's Avatar
    Join Date
    May 2008
    Location
    [CZE] Czechia
    Posts
    471
    Thanks
    26
    Thanked 9 Times in 8 Posts
    Ahem, QuickLZ is with us for almost three years.
    I am... Black_Fox... my discontinued benchmark
    "No one involved in computers would ever say that a certain amount of memory is enough for all time? I keep bumping into that silly quotation attributed to me that says 640K of memory is enough. There's never a citation; the quotation just floats like a rumor, repeated again and again." -- Bill Gates

  4. #4
    Member
    Join Date
    Aug 2009
    Location
    Bari
    Posts
    74
    Thanks
    1
    Thanked 1 Time in 1 Post
    ok, ok I didn't know.

  5. #5
    Member
    Join Date
    May 2009
    Location
    Europe
    Posts
    67
    Thanks
    0
    Thanked 1 Time in 1 Post
    I'm not the author. I only provide here an executable faster than the one hosted on www.quicklz.com

  6. #6
    Member
    Join Date
    Aug 2009
    Location
    Bari
    Posts
    74
    Thanks
    1
    Thanked 1 Time in 1 Post

    Exclamation

    in my tests the final compressed file with qpress 0.37 is 2 times of a final compressed file with 7z. Is it possible?? qpress 0.37 is worster than Winzip.

  7. #7
    Member
    Join Date
    May 2009
    Location
    Europe
    Posts
    67
    Thanks
    0
    Thanked 1 Time in 1 Post
    quicklz is designed for speed not compression ratio.
    According to http://www.quicklz.com/bench.html the fastest level of quicklz is 6x faster than the fastest level of zip. Hence a worse compression ratio.

  8. #8
    Member
    Join Date
    Aug 2009
    Location
    Bari
    Posts
    74
    Thanks
    1
    Thanked 1 Time in 1 Post
    ok, well

Similar Threads

  1. pbzip2 1.05 optimized compile
    By M4ST3R in forum Download Area
    Replies: 0
    Last Post: 2nd October 2009, 17:21
  2. bzip2 1.05 optimized compile
    By M4ST3R in forum Download Area
    Replies: 0
    Last Post: 21st September 2009, 20:49
  3. balz 1.15 optimized compile
    By M4ST3R in forum Download Area
    Replies: 0
    Last Post: 20th July 2009, 23:36
  4. lzop optimized compile
    By M4ST3R in forum Download Area
    Replies: 1
    Last Post: 30th June 2009, 22:31
  5. QuickLZ 1.20 beta Win32 version released!
    By LovePimple in forum Forum Archive
    Replies: 1
    Last Post: 20th February 2007, 17:29

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •