Note that while Windows small file IO is slow; it's extra-slow on C:. I have two partitions (C: and D:) on the same SSD, and creating a whole bunch of empty fil

Note that while Windows small file IO is slow; it's extra-slow on C:. I have two partitions (C: and D:) on the same SSD, and creating a whole bunch of empty files (1.txt to 10000.txt) runs 2x faster on D: than it does on C:. I believe there's two reasons for this: * C: has extra IO filter drivers for system integrity that eat up CPU * C:, by default, enables 8dot3names for compatibility (e.g. with software that expects C:\Progra~1\ to work as an alias to C:\Program Files\). On other partitions, 8dot3names are disabled by default. So I recommend putting the OS on a separate partition from all development activities. Also, don't forget to exclude D: from Windows Defender.