Re: [gentoo-dev] proxy maintainership and gentoo-x86 scm

[Nguyen Thai Ngoc Duy <pclouds@gmail.com>]

On 1/15/10, Nirbheek Chauhan <nirbheek@gentoo.org> wrote:
>  > "git commit <dir>" and "git status <dir>" still do full tree lstat().
>  > I can try to make a patch or two to reduce lstat() in such cases.
>  >
>
>
> That would definitely compliment the --stat option to git diff et al,
>  making git more usable on repos with a huge no. of files. Now that I
>  think about it, why does git <command> <dir> need to do a full tree
>  stat at all? Doesn't the added specification of <dir> mean "I'm only
>  interested in this dir for this command, other stuff doesn't matter"?

Probably because the difference is too small to notice on smaller-size
projects, or because people tend to do whole-tree operations so "git
<command> <dir>"'s performance does not catch the developers' eyes.

Anyway, stat()ing 80k files takes about 1 second on my machine, still
tolerable. There is whole-tree open() in "git status" to check for
untracked files, that contributes more on "git status" slowness. How
long on average did a Git operation take on your tmpfs?
-- 
Duy