NTFS Compression Performance Impact - Windows 11 Guest?

Discussion in 'Parallels Desktop for Apple Silicon (M1) Mac' started by HaraldSt, Mar 6, 2022.

  1. HaraldSt

    HaraldSt Bit Poster

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    Has anybody tried NTFS compression?
    What impact does it make on performance? On my Intel BootCamp it seems to yield about 10%+ reduction in space taken. This becomes significant with 256GB to 512GB drives.
     
  2. HaraldSt

    HaraldSt Bit Poster

    Messages:
    83
    I tried it after backing up the vm. It opened an additional 16% of free space, but actual vm is about 10GB larger!
     
  3. HaraldSt

    HaraldSt Bit Poster

    Messages:
    83
    This drive settled after a day and the extra space showed up.
    On another VM it stayed bloated by about 100GB (no snapshots, disk cleaned and shut down for parallels cleanup, the VMs are on a volume without snapshots and excluded from Spotlight.) I just restored it from my NAS.
     

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