From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andy Wingo Newsgroups: gmane.lisp.guile.bugs Subject: Re: High run time variance Date: Wed, 04 Aug 2010 21:51:26 +0200 Message-ID: References: <4BB0D0A7.7080505@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1280951325 25086 80.91.229.12 (4 Aug 2010 19:48:45 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 4 Aug 2010 19:48:45 +0000 (UTC) Cc: bug-guile@gnu.org To: Luca Saiu Original-X-From: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Wed Aug 04 21:48:40 2010 Return-path: Envelope-to: guile-bugs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Ogjx9-0008NR-7D for guile-bugs@m.gmane.org; Wed, 04 Aug 2010 21:48:39 +0200 Original-Received: from localhost ([127.0.0.1]:53879 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Ogjx8-0003qZ-Ol for guile-bugs@m.gmane.org; Wed, 04 Aug 2010 15:48:38 -0400 Original-Received: from [140.186.70.92] (port=44444 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Ogjx2-0003qT-4h for bug-guile@gnu.org; Wed, 04 Aug 2010 15:48:33 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1Ogjx1-0008JN-17 for bug-guile@gnu.org; Wed, 04 Aug 2010 15:48:31 -0400 Original-Received: from a-pb-sasl-quonix.pobox.com ([208.72.237.25]:55492 helo=sasl.smtp.pobox.com) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Ogjx0-0008JH-Vd; Wed, 04 Aug 2010 15:48:31 -0400 Original-Received: from sasl.smtp.pobox.com (unknown [127.0.0.1]) by a-pb-sasl-quonix.pobox.com (Postfix) with ESMTP id C0DB6CAE42; Wed, 4 Aug 2010 15:48:30 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type; s=sasl; bh=EXGnW+2xmF2/fogjmbpnT3ReMxw=; b=JwCbzu Hpov/nhSQfcxZoB+xfMbpMVc617SHjHyem8H5ORTnA2GdHGLw5shC99PMX8d+k/8 yNWIHtmJKLKa22ewDXmsmxN2xAWMNnZ9eRmSw6IqEPtAIwmFXvwfuoCM7WVFDO1p s5ZZQcUDE4CSa771y8GFLRGbA9aDfzNBY/onA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type; q=dns; s=sasl; b=Sus+gW0HoHr5+GTlprmMD6lBjT2svh2S lNb5yZr/Em4DZkJL4sQgaloKNzH2xqMXK89uClwHySVu8UIYkQ/gFwn9RLz3difb 0A0+Ps7totQaxT/t1B4G5krZ5ouVHOj5HyHdE7kyFltVPTCp3I9CxcADtDoAdZzw HyQ4CjoHcug= Original-Received: from a-pb-sasl-quonix. (unknown [127.0.0.1]) by a-pb-sasl-quonix.pobox.com (Postfix) with ESMTP id AAD1FCAE41; Wed, 4 Aug 2010 15:48:29 -0400 (EDT) Original-Received: from unquote.localdomain (unknown [83.44.189.117]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by a-pb-sasl-quonix.pobox.com (Postfix) with ESMTPSA id E4A65CAE3B; Wed, 4 Aug 2010 15:48:27 -0400 (EDT) In-Reply-To: <4BB0D0A7.7080505@gnu.org> (Luca Saiu's message of "Mon, 29 Mar 2010 18:09:11 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) X-Pobox-Relay-ID: 4160EE74-A001-11DF-987F-9056EE7EF46B-02397024!a-pb-sasl-quonix.pobox.com X-detected-operating-system: by eggs.gnu.org: Solaris 10 (beta) X-BeenThere: bug-guile@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Errors-To: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.bugs:4726 Archived-At: On Mon 29 Mar 2010 18:09, Luca Saiu writes: > To sum up, within each run the computation time of (fibo n) is the same, > but the time varies widely from one run to another. This anomaly seems > to have become much more accentuated in 1.9. I suspect this is related to the GC issues brought up recently on guile-user. Something is being misidentified as a Scheme object. We'll poke this problem once we have a heap profiler. Andy -- http://wingolog.org/