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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 3 weeks ago by [email protected] to c/[email protected]

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[–] [email protected] 11 points 3 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] 8 points 3 weeks ago (2 children)

They make the same mistake further down the article:

However, the implementation of the command suffered from poor scalability related to reference count, creating a performance bottleneck. As repositories accumulated more references, processing time increased exponentially.

This article writer really loves bullet point lists, too. 🤨

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