"git add ." or "git commit -am" really slow due to submodules?

[Justin Lin]

I just switched over to the new git submodules flow, and it seems some operations now take much longer than before.

With the new submodules flow:

$ time git add .

git add .  10.58s user 1.81s system 95% cpu 12.986 total

With gclient:

$ time git add .

git add .  0.50s user 0.24s system 64% cpu 1.156 total

Is this a known issue?

I do "git commit -a --amend" sometimes, so this additional lag is kind of annoying.

[Fred Akalin]

Is this on OS X? If so, I've been similar lags after switching to the new submodules workflow.

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[Michael Courage]

Did you repeat the "ignoreSubmodules" dance from http://code.google.com/p/chromium/wiki/UsingNewGit#Initial_checkout when you made your new checkout? I've forgotten that step a couple of times when setting up new repos, and it definitely slows things down.

On Mon, Feb 25, 2013 at 10:46 AM, Michael Courage <cou...@google.com> wrote:

Did you repeat the "ignoreSubmodules" dance from http://code.google.com/p/chromium/wiki/UsingNewGit#Initial_checkout when you made your new checkout? I've forgotten that step a couple of times when setting up new repos, and it definitely slows things down.

[Justin Lin]

2013/2/25 Fred Akalin <aka...@chromium.org>

Is this on OS X? If so, I've been similar lags after switching to the new submodules workflow.

I thought it was only for my mac, but I just tried Today on my beefy Linux desktop and it has the same issue (the timings I posted are actually from my Linux desktop). It's pretty much the same timings on my mac though.

Did you repeat the "ignoreSubmodules" dance from http://code.google.com/p/chromium/wiki/UsingNewGit#Initial_checkout when you made your new checkout? I've forgotten that step a couple of times when setting up new repos, and it definitely slows things down.

Yea, I had found similar instructions, but that only seems to reduce the time for "git status", not the commands I mentioned. 

[Stefan Zager]

On Mon, Feb 25, 2013 at 10:31 AM, Justin Lin <just...@chromium.org> wrote:

I had not noticed this before, but I can reproduce it, and I'm digging into it.

Thanks for bringing this up.

Stefan