Path: csiph.com!usenet.pasdenom.info!dedibox.gegeweb.org!gegeweb.eu!nntpfeed.proxad.net!proxad.net!feeder2-2.proxad.net!news.osn.de!diablo2.news.osn.de!news.tele.dk!news.tele.dk!small.news.tele.dk!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 0.009 X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'linear': 0.07; 'python': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:number': 0.09; '2.7': 0.13; 'numpy': 0.16; 'received:80.91.229.3': 0.16; 'received:dip.t-dialin.net': 0.16; 'received:plane.gmane.org': 0.16; 'received:t-dialin.net': 0.16; 'skip:{ 30': 0.16; 'wrote:': 0.17; 'byte': 0.17; 'appears': 0.18; '3.2': 0.22; 'sorry,': 0.22; 'subject:problem': 0.22; 'example': 0.23; 'seems': 0.23; 'header:User-Agent:1': 0.26; 'header:X -Complaints-To:1': 0.28; 'that.': 0.30; 'code': 0.31; 'problem': 0.33; 'to:addr:python-list': 0.33; 'there': 0.35; 'received:org': 0.36; 'generation': 0.36; 'method': 0.36; "i'll": 0.36; 'too': 0.36; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'takes': 0.39; 'header:Received:5': 0.40; 'further': 0.61; 'profile': 0.61; 'solve': 0.62; 'more': 0.63; 'subject: ': 0.66; 'below:': 0.71; 'low': 0.83; '2.7.': 0.84; 'route': 0.84; 'ratio': 0.91 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Peter Otten <__peter__@web.de> Subject: Re: Apparent magic number problem Date: Sun, 10 Mar 2013 11:56:13 +0100 Organization: None References: Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7Bit X-Gmane-NNTP-Posting-Host: p5084bdd9.dip.t-dialin.net User-Agent: KNode/4.7.3 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: 22 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1362912950 news.xs4all.nl 6987 [2001:888:2000:d::a6]:38986 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:41012 Colin J. Williams wrote: > My main problem appears to be with: > > Profile with Python 2.7 > 11 25.736 2.340 25.736 2.340 > {numpy.linalg.lapack_lite.dgesv} > > Profile with Python 3.2 > 11 152.111 13.828 152.111 13.828 {built-in method dgesv} > > In other words, the Python 3.2 linear equation solve takes longer than > with Python 2.7. I'll pursue this with the numpy folk. That seems to be a more promising route for further research than byte code compilation. > There also appears to be a problem with the generation of the .pyc. > Please see the example below: Sorry, the signal-to-noise ratio is too low for me to bother with that.