Microsoft is testing ReFS for new Windows 11 installs

by thecosmicfrog on 4/5/2025, 12:44:46 AM with 5 comments

  • by replete on 4/5/2025, 7:40:53 AM

    I found around 6-15% performance improvement in build times after implementing DevDrive (mounted VHD) on Windows machines, which uses ReFS. Deleting huge folders was also perceivably faster.

  • by cors-fls on 4/5/2025, 2:00:31 PM

    I have been made aware of ReFS thanks to the "Dev drive"[1] technology in Win11. ReFS is apparently particularly suited to store source code and code artifacts for dev workloads.

    I have been using it (dedicated DevDrive partition) for some time but performance improvement are subtle and not easily visible without measurements. Which I haven't done.

    [1] https://learn.microsoft.com/en-us/windows/dev-drive/

  • by myrandomcomment on 4/6/2025, 1:30:21 AM

    IIRC, because I am old, NT 3.1/3.51 supported HPFS from OS/2. Now get off my lawn.

  • by hulitu on 4/5/2025, 7:42:03 AM

    > Microsoft is testing

    This is a contradiction in terms. Microsoft doesn't test anything. Always the user has to do it.