Rahul Sundaram wrote:
On 03/30/2012 08:43 AM, Vaclav Mocek wrote:Hi all, I have a cloned GCC git repository, on PC with 1.5GB of RAM and 3GB swap. When I run "$git gc --aggressive", I will get after few hours an error:
I'm curious why you're using git gc --aggressive on a freshly cloned repository. Any particular reason?
$ git gc --aggressive Counting objects: 1332887, done. Delta compression using up to 2 threads. fatal: Out of memory, malloc failed (tried to allocate 4838335 bytes) error: failed to run repack $4.5GB of memory is not enough, what is that?
It's just a fact of the way --aggressive works by default. You can tune this a bit using the gc.aggressiveWindow config option. Generally, git gc --aggressive isn't something you want to run. Linus has said it...
is mostly dumb. It's really only useful for the case of "I know I have a *really* bad pack, and I want to throw away all the bad packing decisions I have done".¹
File a bug report
If you do, please use the git mailing list to report this. As a Fedora git maintainer, I can assure you that we won't be patching git gc --aggressive ourselves. And trying to ferry information back and forth to the git list for a bug like this would be painful and inefficient for everyone involved.
Ideally, you should probably experiment with git repack if you have a need to trim the size of the repository. Some discussion of this is available at the same URL referenced earlier with Linus' commends on git gc --aggressive not being all that useful.
¹ http://gcc.gnu.org/ml/gcc/2007-12/msg00165.html -- Todd OpenPGP -> KeyID: 0xBEAF0CE3 | URL: www.pobox.com/~tmz/pgp ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Tell a man there are 300 billion stars in the universe, he'll believe you. Tell him a bench has wet paint on it and he'll have to touch it to be sure.
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