On 21/02/2025 09:16, Patrick Steinhardt wrote:
Anything I/we can do to shed more light on the issue?
Well, one of the interesting things to learn would be how often you end
up updating those repositories. You have discovered "gc.autoPackLimit"
already, which determines when exactly Git is going to repack existing
packfiles into one, and mentioned that it doesn't seem to help you. But
whether it does or doesn't help really depends on how frequently you
gain new packfiles in the impacted repositories.
When you have fast-moving repositories and developers fetch several
times per day, then it is quite likely that they accumulate multiple new
packfiles per day. And thus, it's not all that unexpected that you will
have to repack the whole repository rather regularly. If so, this is
working as designed. You can tune the parameters for how often Git will
do an all-into-one repack, but also have to keep in mind that the more
packfiles there are, the less efficient Git will in general be.
I don't think the most problematic repo should be moving that fast. But
I might be wrong. We've reverted all settings to default, and we'll try
to keep an eye on what happens to the pack files to gain more understanding.
That being said, there is an alternative: Git nowadays doesn't use
git-gc(1) anymore to perform auto-maintenance, but instead it invokes
git-maintenance(1). And that command allows the user to pick what tasks
should be performed. By default it uses git-gc(1) under the hood indeed,
but you also ask it to not do so and instead use an alternative
mechanism to pack your objects.
Thanks. This is definitely something we can try. We'll observe the
system for now, to establish a new baseline. Then we'll try some of
these settings and see how it affect things.
Regards,
--
Pierre Ossman Software Development
Cendio AB https://cendio.com
Teknikringen 8 https://twitter.com/ThinLinc
583 30 Linköping https://facebook.com/ThinLinc
Phone: +46-13-214600
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
