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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.

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.<p>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.<p>[1] <a href="https://learn.microsoft.com/en-us/windows/dev-drive/" rel="nofollow">https://learn.microsoft.com/en-us/windows/dev-drive/</a>

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

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

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.

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

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

Microsoft is testing ReFS for new Windows 11 installs

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Microsoft is testing ReFS for new Windows 11 installs

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