Path: csiph.com!usenet.pasdenom.info!news.redatomik.org!newsfeed.xs4all.nl!newsfeed1a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <rosuav@gmail.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.029
X-Spam-Evidence: '*H*': 0.94; '*S*': 0.00; 'cc:addr:python-list': 0.11; 'python': 0.11; '3.3,': 0.16; 'buggy': 0.16; 'complaining': 0.16; 'demonstrable': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'wrote:': 0.18; 'not,': 0.20; 'code,': 0.22; 'memory': 0.22; 'cc:addr:python.org': 0.22; 'cc:2**0': 0.24; "i've": 0.25; '15,': 0.26; 'handling': 0.26; 'header:In-Reply-To:1': 0.27; 'idea': 0.28; 'compared': 0.30; 'message-id:@mail.gmail.com': 0.30; 'gives': 0.31; '3.2': 0.31; "d'aprano": 0.31; 'steven': 0.31; 'fri,': 0.33; 'received:google.com': 0.35; 'leads': 0.36; 'possible': 0.36; 'pm,': 0.38; 'most': 0.60; 'due': 0.66; 'benefit': 0.68; 'real- world': 0.68; '2015': 0.84; 'to:none': 0.92
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc :content-type; bh=X+xOZY0TChVy2BNNe5nbNfKtmuv75i4Y21HDjy5IZcM=; b=YnVhc54uLOCq5RScDzVgDz7BEkw8X9mxKpyvtuyYWxkZSRB4u59tRMhdAs0qAjxVop yGE8mDEE/cLMap4294x4HVzqvulVbD4E9ik9eKyQRPoDojAKM/1PoOgIrnRyM/KbxOzE Rl49YxW90oBIsileAMGp68iACEut1WZJZ7JHwBf8oCztUrFa0SYk2FBFyvdW1JIOa4yc mUknx0pjTUSrgaH8Q8GO1yep6xyeUiOozfAnt2z8tYaRMSuY1ge3z9FajuPI93fZ2ZRi w990vshD5is9OEaKGsyJSfeHHb2ykRkOSxnuihhevrLfD26RBPqQG2t2RJMEGbDQY3cd at2Q==
MIME-Version: 1.0
X-Received: by 10.50.66.146 with SMTP id f18mr18627316igt.14.1431693276332; Fri, 15 May 2015 05:34:36 -0700 (PDT)
In-Reply-To: <5555e228$0$13002$c3e8da3$5496439d@news.astraweb.com>
References: <7JN4x.37133$Q41.15375@fx25.am4> <mailman.464.1431556504.12865.python-list@python.org> <6w35x.645690$I97.19867@fx31.am4> <874mnfunpn.fsf@elektro.pacujo.net> <zR85x.441429$Zf4.246168@fx22.am4> <xpb5x.597872$X95.548374@fx10.am4> <crlglfFgf05U1@mid.individual.net> <87bnhmgqrx.fsf@elektro.pacujo.net> <c8bcda07-6c80-4cae-b1b0-2e434135fa42@googlegroups.com> <877fsagptd.fsf@elektro.pacujo.net> <5f588ae2-4f89-477a-a9ad-ac7913cf7459@googlegroups.com> <87y4kqf6z8.fsf@elektro.pacujo.net> <5555e228$0$13002$c3e8da3$5496439d@news.astraweb.com>
Date: Fri, 15 May 2015 22:34:36 +1000
Subject: Re: Building CPython
From: Chris Angelico <rosuav@gmail.com>
Cc: "python-list@python.org" <python-list@python.org>
Content-Type: text/plain; charset=UTF-8
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.20+
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.34.1431693285.17265.python-list@python.org>
Lines: 14
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1431693285 news.xs4all.nl 2957 [2001:888:2000:d::a6]:47783
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:90671

On Fri, May 15, 2015 at 10:10 PM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> The benefit of this is that most strings will use 1/2 or 1/4 of the memory
> that they otherwise would need, which gives an impressive memory saving.
> That leads to demonstrable speed-ups in real-world code, however it is
> possible to find artificial benchmarks that experience a slowdown compared
> to Python 3.2.

It's also possible to find a number of situations in which a narrow
build of 3.2 was faster than 3.3, due to the buggy handling of
surrogates. I've no idea whether jmf is still complaining against that
basis or not, as I don't see his posts.

ChrisA