Re: Git super slow on Windows 7

From: Stefan Beller <sbeller@google.com>
Date: Nov 25, 2015, 18:47 UTC
Message-ID: <CAGZ79kZQd4JrQsp6sk8x-OAWMxxbF+a8BXZb1VQSdJeiQ8jhuQ@mail.gmail.com>
In-Reply-To: <0B47434E-00FE-463A-95F1-1F10537C9F7A@gmail.com>

On Wed, Nov 25, 2015 at 10:42 AM, Lars Schneider <larsxschneider@gmail.com> wrote:

Show 7 quoted lines

> After some investigation I figured that ~50 Submodules are the culprit.
> Does anyone have an idea how to speed up Git on Windows while keeping 50 Submodules?
>
> Thanks,
> Lars
>
>

Use the latest version of Git ;)

Checkout the series merged at 65e1449 (2015-10-05, Merge branch 'sb/submodule-helper')

    The infrastructure to rewrite "git submodule" in C is being built
    incrementally.  Let's polish these early parts well enough and make
    them graduate to 'next' and 'master', so that the more involved
    follow-up can start cooking on a solid ground.

    * sb/submodule-helper:
      submodule: rewrite `module_clone` shell function in C
      submodule: rewrite `module_name` shell function in C
      submodule: rewrite `module_list` shell function in C

More specifically the commits in there:

submodule: rewrite `module_name` shell function in C

    This implements the helper `name` in C instead of shell,
    yielding a nice performance boost.

    Before this patch, I measured a time (best out of three):

      $ time ./t7400-submodule-basic.sh  >/dev/null
        real 0m11.066s
        user 0m3.348s
        sys 0m8.534s

    With this patch applied I measured (also best out of three)

      $ time ./t7400-submodule-basic.sh  >/dev/null
        real 0m10.063s
        user 0m3.044s
        sys 0m7.487s