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I used jj for several months, then eventually went back to git.

The biggest killer was performance. jj operations took several seconds for me, whereas git is instantaneous no matter how big the project. Maybe this is fixed now.

But also honestly I felt like there was a bit more mental burden to using jj. When I switched back to git, it was like a weight off my shoulders. Maybe that's just due to the decade of constant use though.



I used to have the same problem (on Windows only, not Mac) but it seems to have been fixed as of a month or two ago.


There's a noticeable delay when doing operations on Nixpkgs (to the tune of a quarter-second), but that's a huge repository.

Everything else is instant.


I ran into this at first on a large-ish repo. watchman fixed it: https://jj-vcs.github.io/jj/latest/config/#filesystem-monito...




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