On Tue, Feb 6, 2018 at 2:16 AM, Duy Nguyen <pclouds@xxxxxxxxx> wrote: > On Tue, Feb 6, 2018 at 3:16 AM, Ian Norton <inorton@xxxxxxxxx> wrote: >> Hi all, >> >> I'm generally used to the idea that if a thing is not marked as >> "thread-safe" then it isn't thread safe, but I thought I'd ask anyway >> to be sure. >> >> Is it safe for me to do several operations with git concurrently on >> the same local repo? > > Off the top of my head, object database access (e.g. things in > .git/objects), refs updates (.git/refs) and .git/index should handle > concurrent operations fine (or in the worst case you get "some > operation is ongoing, aborted" and you need to try again but not > corruption or anything else). I think we generally try to make it safe > concurrently. > >> Specifically I'm trying to speed up "git >> submodule update" by doing several at the same time. I've noticed >> some odd side effects afterwards though when trying to commit changes >> to my super project. > > submodule is a hot area with lots of development lately I think, > perhaps you're seeing some bugs... CCing at least one submodule > person... > >> Apologies if this is answered elsewhere, my google-foo is weak today. >> >> Many thanks >> >> Ian "git submodule update" has the network part parallelized, but not the local part IIRC. (That is cloning/fetching submodules can be done with "-j <n>", but the local checkout is still serial for UX purposes, i.e. it wants to stop at the first conflict and only have one conflict at a time) Which odd side effects do you see? I'd be curious to see if that is a bug in the code or documentation. Thanks, Stefan
