gitconfig: added unpacklimit = 1
See #5248
Reducing unpacklimit
value to 1 (from the default 100) should help
speed up git fetch
(in case of fetching from upstream mirror) and git receive-pack
(in case of handling a git push).
In both case, instead of unpacking the pack objects into loose objects so later we can re-pack them during maintenance operations (gc / repack), we just store the pack objects as-is and repack them later.
This should improve the speed which we need to write onto NFS as it will be 1 single write vs the multiple writes(up to 100 according to default settings) every pack received.