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I don't know if it is due to various fork implementations being slow on Windows, but programs that spawn a lot of subprocesses like build tools can be really slow [1].

I would love to see some numbers for those from Bash on Windows.

[1]: https://gist.github.com/jibsen/7ebeddde3bc2bfd421b96ae53a824...

One example: The HyPer in-memory database from TUM uses fork to provide fast snapshots for running OLAP queries on fresh data.

[1]: http://hyper-db.de

Redis uses fork to save to disk.

Does fork on windows actually block parent for a long time, or does it only delay the child? I thought it was the latter, which shouldn't affect Redis. (but I may be wrong)