Number of threads for git gc depending on repo size

Question

Can I use single-threaded compression in Git for large repositories and usual parallelized one for small ones? Like "pack.threads=1" if don't easily fit in momory and "pack.threads=4" otherwise.

As I heart somewhere, multithreaded "git gc" requires a lot memory and thrashes (or just fails) longer that singlethreaded.

I want it to work fast for small repos and don't fail on big repos.

Is the performance of this setting impacted by the repository size? I thought it was only related to number of cores? — Arafangion, Mar 09 '11 at 23:22
@Arafangion, Multiple threads => much more memory needed (may be even proportionally). Lack of memory => swapping => slow. — Vi., Mar 10 '11 at 09:30

score 4 · Accepted Answer · answered Mar 09 '11 at 18:42

4

You can configure pack.threads per repository, but I doubt that there is a setting to do this automatically depending on the size of the repository.

answered Mar 09 '11 at 18:42

Lars Noschinski

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OK, I forgot that it can be non-global option too. – Vi. Mar 09 '11 at 18:49

Number of threads for git gc depending on repo size

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