Path: csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!newsfeed.xs4all.nl!newsfeed5.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <dwightdhutto@gmail.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.011
X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'subject:Python': 0.05; 'level,': 0.07; 'subject:How': 0.09; 'python': 0.09; 'app,': 0.09; 'received:mail-vb0-f46.google.com': 0.09; 'portion': 0.13; 'asm': 0.16; 'subject:limit': 0.16; 'subject:usage': 0.16; 'variable.': 0.16; 'processor': 0.17; 'received:209.85.212.46': 0.18; 'module': 0.19; 'constant': 0.22; 'script': 0.24; 'header:In-Reply-To:1': 0.25; 'message-id:@mail.gmail.com': 0.27; 'received:209.85.212': 0.28; 'cpu': 0.29; 'sleep': 0.29; "i'm": 0.29; 'running': 0.32; 'could': 0.32; 'to:addr:python-list': 0.33; 'received:google.com': 0.34; 'received:209.85': 0.35; 'there': 0.35; 'but': 0.36; 'compare': 0.36; 'useful': 0.36; 'possible': 0.37; 'being': 0.37; 'received:209': 0.37; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'header:Received:5': 0.40; 'your': 0.60; 'time,': 0.62; 'limit': 0.65; 'want,': 0.65; 'maybe,': 0.84; 'surface': 0.84; 'processes,': 0.93
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:to :content-type; bh=5kVHdA8bDbsTXy1Y8OaotaP/IL1ijxDq5M5kdoL1cRw=; b=XseIlscXRMSJ/Aqw/sfBiO2AaB4HsdyEu9CwMtFMAsd6tvd/xzM+OEzsIcZqDDKyQN PTIUIkFsZRKLhW/WAzKDMfj9UgE9h3MUT67Bd0GwW1m9KVW3JyJAp4TmLY01od91Qnkr vCKVaQHm+xRQDoCrpPGGa6rXHXPM2fzUhvoZ2FoWmte9yoYMG/Dr44eSKI0+rmiDHD2n blZyRndNe+cETFV56MPMdJopxLMq+PqCyupJZwJREApqjqqz9YD4kdj+iKKTxZZpoC0L Z6dQpSJstiLmkP+gsRS4lFSYLe4Rk8vgHtzy3i46dw1i4IYS8VcaFnxGLLWlmG9T5gp4 zNLQ==
MIME-Version: 1.0
In-Reply-To: <7xpq5d7j5e.fsf@ruckus.brouhaha.com>
References: <mailman.960.1348154419.27098.python-list@python.org> <7xpq5d7j5e.fsf@ruckus.brouhaha.com>
Date: Sat, 22 Sep 2012 23:04:39 -0400
Subject: Re: How to limit CPU usage in Python
From: Dwight Hutto <dwightdhutto@gmail.com>
To: python-list@python.org
Content-Type: text/plain; charset=ISO-8859-1
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://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: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.1095.1348369482.27098.python-list@python.org>
Lines: 27
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1348369482 news.xs4all.nl 6886 [2001:888:2000:d::a6]:36118
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:29777

rites:
>> Is it possible for me to put a limit in the amount of processor usage
>> (% CPU) that my current python script is using? Is there any module
>> useful for this task?
>
> One way is check your cpu usage once in a while, compare with elapsed
> time, and if your % usage is above what you want, sleep for a suitable
> interval before proceeding.
>

The script in constant runtime, unless it's in relation to other
processes, could be put on a % based sleep constant variable.

If the script is constantly running the same processes, and the OP
wants to limit it statistically, then at a critical portion in the
script sleep for a constant, or maybe, dynamic variable.

The only other is to create an app, disassemble it, and then refine
the asm instructions being used at the assembly level, but I'm just
scratching the surface of those enhancements.



-- 
Best Regards,
David Hutto
CEO: http://www.hitwebdevelopment.com