Gentoo Archives: gentoo-dev

From: Nguyen Thai Ngoc Duy <pclouds@×××××.com>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] proxy maintainership and gentoo-x86 scm
Date: Thu, 14 Jan 2010 13:48:13
Message-Id: fcaeb9bf1001140547l749054adv542caf7646e111f3@mail.gmail.com
In Reply to: Re: [gentoo-dev] proxy maintainership and gentoo-x86 scm by Nirbheek Chauhan
1 On 1/14/10, Nirbheek Chauhan <nirbheek@g.o> wrote:
2 > On Wed, Jan 13, 2010 at 9:24 PM, Mike Frysinger <vapier@g.o> wrote:
3 > > i think our current work flows also significantly impede the smooth running of
4 > > this. if we had were using a dscm (git) on gentoo-x86, i feel like it'd be a
5 > > much smoother ride for Gentoo devs to pull from a proxy maintainer and push on
6 > > their behalf.
7 > >
8 >
9 >
10 > In theory, yes. In practice, git is too slow to handle 30,000 files.
11 > Even simple operations like git add become painful even if you put the
12 > whole of portage on tmpfs since git does a stat() on every single file
13 > in the repository with every operation.
14
15 What you need is "git update-index --assume-unchanged". That feature
16 was introduced exactly to reduce stat().
17
18 BTW, if you know you only work in certain directories, doing "git diff
19 --stat <dir>", "git diff --cached --stat <dir>" instead of "git
20 status" would also help. Make aliases for them ("git dis" and "git
21 dics" in my ~/.gitconfig) so you don't have to type full command every
22 time.
23
24 "git commit <dir>" and "git status <dir>" still do full tree lstat().
25 I can try to make a patch or two to reduce lstat() in such cases.
26
27 Does that help?
28 --
29 Duy

Replies

Subject Author
Re: [gentoo-dev] proxy maintainership and gentoo-x86 scm Nirbheek Chauhan <nirbheek@g.o>