Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.albasani.net!newsfeed.freenet.ag!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; '16,': 0.03; 'cpython': 0.05; 'assuming': 0.09; 'git': 0.09; 'mercurial': 0.09; 'read- only': 0.09; 'subject: [': 0.09; 'yeah,': 0.09; 'cc:addr:python- list': 0.11; 'big,': 0.16; 'cc:name:python list': 0.16; 'dvcs': 0.16; 'guessing': 0.16; 'hmm.': 0.16; 'rarely': 0.16; 'roy': 0.16; 'shallow': 0.16; 'used:': 0.16; '\xa0this': 0.16; 'files.': 0.16; 'sat,': 0.16; 'size,': 0.16; 'wrote:': 0.18; 'seems': 0.21; 'email addr:gmail.com>': 0.22; 'cc:addr:python.org': 0.22; 'cc:2**0': 0.24; '>': 0.26; '15,': 0.26; 'push': 0.26; 'post': 0.26; 'gets': 0.27; 'idea': 0.28; 'chris': 0.29; 'am,': 0.29; 'patch': 0.29; 'message-id:@mail.gmail.com': 0.30; "i'm": 0.30; 'lot.': 0.31; 'url:06': 0.31; 'run': 0.32; 'cases': 0.33; 'problem.': 0.35; 'but': 0.35; 'received:google.com': 0.35; '(we': 0.36; 'skip:~ 10': 0.36; 'should': 0.36; 'jason': 0.38; 'subject:]': 0.38; 'skip:- 10': 0.38; 'pm,': 0.38; 'that,': 0.38; 'does': 0.39; 'bad': 0.39; 'url:12': 0.39; 'major': 0.40; 'how': 0.40; 'everybody': 0.60; 'most': 0.60; 'full': 0.61; 'to:addr:gmail.com': 0.65; 'smith': 0.68; 'bulk': 0.74; 'url:wordpress': 0.78; 'subject:Control': 0.84; 'url:2007': 0.84; 'rusi': 0.91; '2013': 0.98 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:cc:content-type; bh=ar6GNUsR63IS7WAxliXHUrRKJPWWOo/cajGolBPTCI4=; b=F5tjJ27nA4UiE5Rd0da3TLqTYzc8i73/vsZ64cjRqgXHMWpbHsV5WfQhDwqMKkC7kT ZVkQc8pVjL2+4YLdkAFpa2UOsdJ9mNGGsxU9ZD/zA02ZWM7/kiJPkEij5hPGcx7Sh+CX flqn2/3MG0qLbSJN3EtkRw4rf9DfZ4bqlMLJDPRqeEkKIQjVzyjUAk2nYV+7C4rYN6gZ Cqsi5wMRKY0MgKT/leO69Cxtxttp4TOdz64ibya/cOyiN42AFg1xsDd4s3vKwS5JNsLV Vaix9XErAE6fD99wK6vVsG04uZEGnFlY0p+2193BcF0aWlKQmWTTIa3nIahbUYHYqjUU 3mSg== MIME-Version: 1.0 X-Received: by 10.50.44.8 with SMTP id a8mr2952607igm.88.1371391789479; Sun, 16 Jun 2013 07:09:49 -0700 (PDT) Date: Sun, 16 Jun 2013 10:09:49 -0400 Subject: on git gc --aggressive [was Re: Version Control Software] From: Jason Swails To: rusi Content-Type: multipart/alternative; boundary=e89a8f64713575beb704df4608d2 Cc: python list X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 95 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1371391791 news.xs4all.nl 15917 [2001:888:2000:d::a6]:57045 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:48456 --e89a8f64713575beb704df4608d2 Content-Type: text/plain; charset=ISO-8859-1 On Sat, Jun 15, 2013 at 11:55 PM, rusi wrote: > On Jun 16, 4:14 am, Chris Angelico wrote: > > On Sun, Jun 16, 2013 at 12:16 AM, Roy Smith wrote: > > > The advantage of DVCS is that everybody has a full copy of the repo. > > > The disadvantage of the DVCS is that every MUST have a full copy of the > > > repo. When a repo gets big, you may not want to pull all of that data > > > just to get the subtree you need. > > > > Yeah, and depending on size, that can be a major problem. While git > > _will_ let you make a shallow clone, it won't let you push from that, > > so it's good only for read-only repositories (we use git to manage > > software deployments at work - shallow clones are perfect) or for > > working with patch files. > > > > Hmm. ~/cpython/.hg is 200MB+, but ~/pike/.git is only 86MB. Does > > Mercurial compress its content? A tar.gz of each comes down, but only > > to ~170MB and ~75MB respectively, so I'm guessing the bulk of it is > > already compressed. But 200MB for cpython seems like a lot. > > [I am assuming that you have run "git gc --aggressive" before giving > those figures] > Off-topic, but this is a bad idea in most cases. This is a post including an email from Torvalds proclaiming how and why git gc --aggressive is dumb in 99% of cases and should rarely be used: http://metalinguist.wordpress.com/2007/12/06/the-woes-of-git-gc-aggressive-and-how-git-deltas-work/ All the best, Jason --e89a8f64713575beb704df4608d2 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable


On Sa= t, Jun 15, 2013 at 11:55 PM, rusi <rustompmody@gmail.com> wrote:
On Jun 16, 4:14=A0am, Chris Angelico <ros...@gmail.com> wrote:
> On Sun, Jun 16, 2013 at 12:16 AM, Roy Smith <r...@panix.com> wrote:
> > The advantage of DVCS is that everybody has a full copy of the re= po.
> > The disadvantage of the DVCS is that every MUST have a full copy = of the
> > repo. =A0When a repo gets big, you may not want to pull all of th= at data
> > just to get the subtree you need.
>
> Yeah, and depending on size, that can be a maj= or problem. While git
> _will_ let you make a shallow clone, it won't let you push from th= at,
> so it's good only for read-only repositories (we use git to manage=
> software deployments at work - shallow clones are perfect) or for
> working with patch files.
>
> Hmm. ~/cpython/.hg is 200MB+, but ~/pike/.git is only 86MB. Does
> Mercurial compress its content? A tar.gz of each comes down, but only<= br> > to ~170MB and ~75MB respectively, so I'm guessing the bulk of it i= s
> already compressed. But 200MB for cpython seems like a lot.

[I am assuming that you have run =A0"git gc --aggressive" b= efore giving
those figures]

Off-topic, but this is a bad idea in most cases.= =A0This is a post including an email from Torvalds proclaiming how and why= git gc --aggressive is dumb in 99% of cases and should rarely be used:


All the best,
Jason=
--e89a8f64713575beb704df4608d2--