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Thread: CHK 1.02 - file analysis tool

  1. #1
    The Founder encode's Avatar
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    Exclamation CHK 1.02 - file analysis tool

    Okay new version is out!

    Key features:
    • SHA1 & CRC calculation
    • Compression ratio estimation (Compression prognosis)


    Enjoy!

    22CDEA23F5750D26CE45296218A535948D7B4BEC *chk102.zip
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    I have two suggestions:
    - make version for Linux
    - make OpenCL-accelerated hash computation - Radeons excels at hashing,

  3. #3
    Member zody's Avatar
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    or maybe multithreading..would speed up the hole process a lot and the gui is still usable while adding files =)

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    I like this program There are some shortcomings though... CHK reads from my disk with only around 10 MB/s (one big file) and uses ~80% of one core, does it do both checksums from one disk read? When I copy that file on the same partition, explorer can do 50 MB/s disk traffic.
    Feature request from me: Possibility to change column order, also probably different icon, this one doesn't seem as good as you usually do

    EDIT: Clarifications
    Last edited by Black_Fox; 24th July 2011 at 14:56.
    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

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    It does all at one disk read - it read buffer and compute - SHA1, CRC and compression estimation at the same time. All that computations need some time - so it can't get full I/O speed.

  6. #6
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    That's good to hear, however why isn't even one full core of quad-core used then?
    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

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    I guess due to memory access. The CRC/SHA1 need a small amount of memory, but my compression estimator uses about 18 MB which is randomly accessed (hash pointed).

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