From mboxrd@z Thu Jan  1 00:00:00 1970
From: Piotr Krukowiecki <piotr.krukowiecki@gmail.com>
Subject: Re: git status: small difference between stating whole repository and
 small subdirectory
Date: Fri, 10 Feb 2012 17:18:55 +0100
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Cc: Nguyen Thai Ngoc Duy <pclouds@gmail.com>
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On Fri, Feb 10, 2012 at 10:42 AM, Piotr Krukowiecki
<piotr.krukowiecki@gmail.com> wrote:
> Hi,
>
> I compared stating whole tree vs one small subdirectory, and I
> expected that for the subdirectory status will be very very fast.
> After all, it has only few files to stat. But it's not fast. Why?
>
>
> With cold cache (echo 3 | sudo tee /proc/sys/vm/drop_caches):
>
> $ time git status =A0 =A0> /dev/null
> real =A0 =A00m41.670s
> user =A0 =A00m0.980s
> sys =A0 =A0 0m2.908s
>
> $ time git status -- src/.../somedir =A0 > /dev/null
> real =A0 =A00m17.380s
> user =A0 =A00m0.748s
> sys =A0 =A0 0m0.328s
>
>
> With warm cache:
>
> $ time git status =A0 =A0> /dev/null
> real =A0 =A00m0.792s
> user =A0 =A00m0.404s
> sys =A0 =A0 0m0.384s
>
> $ time git status -- src/.../somedir =A0 > /dev/null
> real =A0 =A00m0.335s
> user =A0 =A00m0.288s
> sys =A0 =A0 0m0.048s
>
>
> Repository/dir stats:
>
> $ find * -type f | wc -l
> 127189
> $ du -shc * | grep total
> 2.2G =A0 =A0total
>
> $ find src/.../somedir -type f | wc -l
> 55
> $ du -shc src/.../somedir | grep total
> 224K =A0 =A0total
>
>
> $ git --version
> git version 1.7.9.rc0.10.gbeecc

I can't reproduce this behavior at the moment. 'status' on the
directory takes about 1.5s instead of 17s. status on whole repository
takes 27s.
This is my work repository, so it was changed today.

I'll get back to you when I can reproduce the problem again...


--=20
Piotr Krukowiecki