Slow performance on large repos

[mrmeyers99]

Hi,

I have a very large repo which takes 1-2 minutes to do an unshallow fetch

Wed, 09 Aug 2023 16:31:34 GMT Run tony84727/[email protected]
Wed, 09 Aug 2023 16:31:34 GMT /usr/bin/git fetch --prune --unshallow
Wed, 09 Aug 2023 16:32:33 GMT From https://github.com/<org>/<repo>

I was wondering if there might be a better way to do this check? Maybe checking out the head and the base refs and doing the compare that way?

I'm using this action in many of my workflows to conditionally skip long running jobs depending on if you changed relevant files, so the time spent is still worth it, but it would be nice if it was faster.

[tylerlaprade]

I occasionally get extremely slow performance on my repo, around 3 minutes, and sometimes even up to 10 minutes to run. But most of the time it runs in 40 seconds.

[mrmeyers99]

I just noticed you merged a PR in attempts to fix this. I think our repo's problem is the shear number of tags and branches it has. It doesn't seem like the change you made to add --filter=blob:none changed the performance for us.