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How GitLab decreased repo backup times from 48 hours to 41 minutes with a fix to Git (about.gitlab.com)

submitted 4 weeks ago by [email protected] to c/[email protected]

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[–] [email protected] 11 points 4 weeks ago (14 children)

we traced the issue to a 15-year-old Git function with O(N²) complexity and fixed it with an algorithmic change, reducing backup times exponentially.

I feel like there is something wrong with this sentence.

[–] [email protected] 9 points 3 weeks ago* (last edited 3 weeks ago) (2 children)

Seem ok to me, both in grammar and what it's saying about the change. O(N²) to O(N) would be an exponential drop (2 down to 1, in fact).

[–] [email protected] 5 points 3 weeks ago

It's at least misleading 😛

But I have to agree that for any non-math people this would convey the right idea, whereas "quadratic improvement" would probably not mean anything 🤷

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