Path: csiph.com!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder1.enfer-du-nord.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!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 0.019 X-Spam-Evidence: '*H*': 0.96; '*S*': 0.00; 'subject:Python': 0.06; '64-bit': 0.07; 'pypy': 0.07; '32-bit': 0.09; 'executed': 0.09; 'obsolete': 0.09; 'url:pypy': 0.09; 'python': 0.11; 'accepting': 0.14; 'from:addr:ian': 0.16; 'porting': 0.16; 'received:172.20.0': 0.16; 'wrote:': 0.18; 'written': 0.21; 'header:User-Agent:1': 0.23; 'initial': 0.24; "haven't": 0.24; 'header:In-Reply-To:1': 0.27; 'appear': 0.29; "doesn't": 0.30; 'said,': 0.30; "i'm": 0.30; 'code': 0.31; '20%': 0.31; 'received:208.97': 0.31; 'received:208.97.132': 0.31; 'received:66.33': 0.31; 'received:66.33.216': 0.31; 'received:66.33.216.122': 0.31; 'received:dreamhost.com': 0.31; 'received:g.dreamhost.com': 0.31; 'received:hapkido.dreamhost.com': 0.31; 'routine': 0.31; 'subject:what': 0.31; 'run': 0.32; 'guess': 0.33; 'older': 0.33; 'subject:the': 0.34; 'received:66': 0.35; 'but': 0.35; 'revert': 0.36; 'ubuntu': 0.36; 'subject:?': 0.36; 'url:org': 0.36; 'project': 0.37; 'performance': 0.37; 'being': 0.38; 'sometimes': 0.38; 'to:addr:python-list': 0.38; 'rather': 0.38; 'to:addr:python.org': 0.39; 'ian': 0.60; 'received:172.20': 0.60; 'most': 0.60; 'year.': 0.61; 'john': 0.61; 'received:208': 0.61; 'increase': 0.74; 'occupied': 0.84; 'subject:latest': 0.84; 'touched': 0.84; 'execution,': 0.91 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=feete.org; h=message-id :date:from:mime-version:to:subject:references:in-reply-to :content-type:content-transfer-encoding; s=feete.org; bh=DNDgnpa wWkju+sbvB6HYMf80COA=; b=Pu3jkucKcLG66/a2GHFMrz+FFmtq0vPJp+xUqru lJc2jfTgWBmG8fsklIvODPfh8gOEg40E4IltwDiBQbYv+dOPNexvALyH78ZZpOj7 KclGb0iP4hPDDPZQAn52gXiiiDc9aDW6MRRPPxufEKyYcA5+Uj+bVY4T8So3IuC5 U5bg= Date: Fri, 05 Apr 2013 13:50:51 +0100 From: Ian Foote User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130308 Thunderbird/17.0.4 MIME-Version: 1.0 To: python-list@python.org Subject: Re: JIT compilers for Python, what is the latest news? References: <6ac24546-6cc6-4a01-9fa6-3b52d64484e3@googlegroups.com> In-Reply-To: <6ac24546-6cc6-4a01-9fa6-3b52d64484e3@googlegroups.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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: 15 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1365166263 news.xs4all.nl 6870 [2001:888:2000:d::a6]:46691 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:42814 On 05/04/13 03:29, John Ladasky wrote: > I'm revisiting a project that I haven't touched in over a year. It was written in Python 2.6, and executed on 32-bit Ubuntu 10.10. I experienced a 20% performance increase when I used Psyco, because I had a computationally-intensive routine which occupied most of my CPU cycles, and always received the same data type. (Multiprocessing also helped, and I was using that too.) > > I have now migrated to a 64-bit Ubuntu 12.10.1, and Python 3.3. I would rather not revert to my older configuration. That being said, it would appear from my initial reading that 1) Psyco is considered obsolete and is no longer maintained, 2) Psyco is being superseded by PyPy, 3) PyPy doesn't support Python 3.x, or 64-bit optimizations. > > Do I understand all that correctly? > > I guess I can live with the 20% slower execution, but sometimes my code would run for three solid days... > Pypy is working on porting to python 3. They are accepting donations: http://pypy.org/py3donate.html Regards, Ian F