Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #73660

Re: print statements and profiling a function slowed performance

Path csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path <skip.montanaro@gmail.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.007
X-Spam-Evidence '*H*': 0.99; '*S*': 0.00; 'lawrence': 0.09; 'measure': 0.09; 'cc:addr:python-list': 0.11; 'contest.': 0.16; 'count,': 0.16; 'from:addr:pobox.com': 0.16; 'from:addr:skip': 0.16; 'measured': 0.16; 'statement.': 0.16; 'string:': 0.16; 'sender:addr:gmail.com': 0.17; 'wrote:': 0.18; 'module': 0.19; 'cc:addr:python.org': 0.22; 'print': 0.22; 'skip': 0.24; 'cc:2**0': 0.24; 'logging': 0.26; 'header:In-Reply-To:1': 0.27; 'am,': 0.29; 'message-id:@mail.gmail.com': 0.30; 'code': 0.31; 'doc': 0.31; 'fri,': 0.33; 'created': 0.35; 'something': 0.35; 'received:google.com': 0.35; 'instances': 0.36; 'does': 0.39; 'simple': 0.61; 'expectations': 0.74; 'to:addr:yahoo.co.uk': 0.84
DKIM-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=DFNMYYe+zJLPjLl/R5KaHSLR0hfhtGm1qtVw+yRGeTs=; b=RfDgPU2pNkcwL9189Q58+7hGcAR7Y6vL8Oo4rAI8iPHsztmP5kwtxlWEaHpWyb58yi Fqz89ksy3Stjj9Xj9J6p/uafxqpQ4Nwfn54NWznq28aJglfjQk9hvNG0atvoWyIzg+NP kdhGLt7Etf4K2HVaKrAhzodx4QNMkcLPHiq2D/sbLAlWwA0lhcUE7/cE+8JDxbTOE46n 2kkOCYXfLjiPMvP5+1CRxxKpvh2RrQ4k64k0aKbwdPUlZpLcw50n7B503QqHHPo2BwjQ mQkqGrU1i/EJO4WuUSyoWme1FsIeTIx7TLePztSewVN2oP5qGulswIpQuq/JhWNF+J78 pvOA==
MIME-Version 1.0
X-Received by 10.42.15.70 with SMTP id k6mr22168519ica.53.1403885137181; Fri, 27 Jun 2014 09:05:37 -0700 (PDT)
Sender skip.montanaro@gmail.com
In-Reply-To <lok45f$45v$1@ger.gmane.org>
References <d5d8cea5-c4c9-42c4-865f-9efe33b162ed@googlegroups.com> <mailman.11266.1403810884.18130.python-list@python.org> <d1dbc61a-ed09-4a10-b4d5-deb40cb54430@googlegroups.com> <53acdd24$0$29985$c3e8da3$5496439d@news.astraweb.com> <lok45f$45v$1@ger.gmane.org>
Date Fri, 27 Jun 2014 11:05:37 -0500
X-Google-Sender-Auth 71Q8BNaecDzJqqvM7OEzQ7mv6AE
Subject Re: print statements and profiling a function slowed performance
From Skip Montanaro <skip@pobox.com>
To Mark Lawrence <breamoreboy@yahoo.co.uk>
Content-Type text/plain; charset=UTF-8
Cc Python <python-list@python.org>
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 <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.11288.1403885140.18130.python-list@python.org> (permalink)
Lines 11
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1403885140 news.xs4all.nl 2867 [2001:888:2000:d::a6]:36735
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:73660

Show key headers only | View raw

On Fri, Jun 27, 2014 at 10:55 AM, Mark Lawrence <breamoreboy@yahoo.co.uk> wrote:
> Expectations don't count, measure it :)

It's no contest. I have measured it (ages ago). The logging module
does so many things that it's impossible for it to ever be as fast as
a simple print statement. Look at the code in LogRecord.__init__. Then
note the doc string:

... LogRecord instances are created every time something is logged. ...

Skip

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

print statements and profiling a function slowed performance CM <cmpython@gmail.com> - 2014-06-26 11:44 -0700
  Re: print statements and profiling a function slowed performance Michael Torrie <torriem@gmail.com> - 2014-06-26 13:14 -0600
    Re: print statements and profiling a function slowed performance CM <cmpython@gmail.com> - 2014-06-26 13:36 -0700
      Re: print statements and profiling a function slowed performance Chris Angelico <rosuav@gmail.com> - 2014-06-27 12:06 +1000
      Re: print statements and profiling a function slowed performance Michael Torrie <torriem@gmail.com> - 2014-06-26 19:59 -0600
      Re: print statements and profiling a function slowed performance Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-06-28 09:41 -0400
      Re: print statements and profiling a function slowed performance Chris Angelico <rosuav@gmail.com> - 2014-06-28 23:50 +1000
      Re: print statements and profiling a function slowed performance Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-06-29 02:14 -0400
      Re: print statements and profiling a function slowed performance Chris Angelico <rosuav@gmail.com> - 2014-06-29 17:14 +1000
  Re: print statements and profiling a function slowed performance Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-06-26 20:27 +0100
    Re: print statements and profiling a function slowed performance CM <cmpython@gmail.com> - 2014-06-26 13:37 -0700
      Re: print statements and profiling a function slowed performance Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-06-27 02:55 +0000
        Re: print statements and profiling a function slowed performance Chris Angelico <rosuav@gmail.com> - 2014-06-27 13:14 +1000
        Re: print statements and profiling a function slowed performance Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-06-27 16:55 +0100
        Re: print statements and profiling a function slowed performance Skip Montanaro <skip@pobox.com> - 2014-06-27 11:05 -0500
        Re: print statements and profiling a function slowed performance Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-27 15:35 -0600
        Re: print statements and profiling a function slowed performance Skip Montanaro <skip@pobox.com> - 2014-06-27 19:12 -0500
        Re: print statements and profiling a function slowed performance Chris Angelico <rosuav@gmail.com> - 2014-06-28 10:29 +1000
          Re: print statements and profiling a function slowed performance Marko Rauhamaa <marko@pacujo.net> - 2014-06-28 22:20 +0300
            Re: print statements and profiling a function slowed performance Chris Angelico <rosuav@gmail.com> - 2014-06-29 09:30 +1000
            Re: print statements and profiling a function slowed performance Rustom Mody <rustompmody@gmail.com> - 2014-06-28 19:25 -0700
              Re: print statements and profiling a function slowed performance Chris Angelico <rosuav@gmail.com> - 2014-06-29 12:32 +1000
        Re: print statements and profiling a function slowed performance Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-06-28 02:06 +0100
  Re: print statements and profiling a function slowed performance Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-06-26 22:11 -0400

csiph-web