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Resolved Question on 'number of buckets in a subsection calculation' in Memory allocator customization doc

Discussion in 'Documentation' started by visca_c, Jan 26, 2023.

  1. visca_c

    visca_c

    Joined:
    Apr 7, 2014
    Posts:
    27
    Doc link: https://docs.unity3d.com/Manual/memory-allocator-customization.html

    under Bucket Allocator section, there is a paragraph that talks about calculating number of buckets in a subsection:
    upload_2023-1-26_11-32-9.png

    When I try to do the math, the numbers don't seem to be exact.

    E.G:
    16KB / 64B = 16000B / 64B = 250
    16KB / 16B = 16000B / 16B = 1000

    the numbers don't seem to line up with the documentation, I wonder what's the underneath reason, if anyone knows, I'd appreciate the info!
     
    visca_c, Jan 26, 2023
    #1

  2. Lurking-Ninja

    Lurking-Ninja

    Joined:
    Jan 20, 2015
    Posts:
    8,980
    That's not 16,000 bytes, that's 16,384 bytes. In Computer Science we have the kilobyte defined as 1024 bytes for a long time. I know there are some efforts to change that, but it's dumb and leads to misunderstandings like this.
     
    Lurking-Ninja, Jan 26, 2023
    #2
    visca_c likes this.

  3. visca_c

    visca_c

    Joined:
    Apr 7, 2014
    Posts:
    27
    Ah, that make sense now. I did a quick google for 'kb to bytes' and saw the conversion window says '1 kilobyte = 1000 byte', and didn't look further (which I probably should have...)

    Thanks alot for the help!
     
    visca_c, Jan 26, 2023
    #3