From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27821 invoked by alias); 30 Nov 2005 22:25:00 -0000 Received: (qmail 27814 invoked by uid 22791); 30 Nov 2005 22:24:59 -0000 X-Spam-Check-By: sourceware.org Received: from mail-out4.apple.com (HELO mail-out4.apple.com) (17.254.13.23) by sourceware.org (qpsmtpd/0.31) with ESMTP; Wed, 30 Nov 2005 22:24:56 +0000 Received: from relay6.apple.com (a17-128-113-36.apple.com [17.128.113.36]) by mail-out4.apple.com (8.12.11/8.12.11) with ESMTP id jAUMOqKg018495; Wed, 30 Nov 2005 14:24:52 -0800 (PST) Received: from [17.201.24.155] (mrs.apple.com [17.201.24.155]) by relay6.apple.com (Apple SCV relay) with ESMTP id 5A39E3B9; Wed, 30 Nov 2005 14:24:52 -0800 (PST) Mime-Version: 1.0 (Apple Message framework v733) References: <1133293900.31007.216.camel@pc.site> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <64ECA25B-FF07-4598-A5C6-70A66688AD29@apple.com> Cc: overseers@gcc.gnu.org Content-Transfer-Encoding: 7bit From: Mike Stump Subject: Fwd: Performance regression testing? Date: Fri, 02 Dec 2005 21:42:00 -0000 To: Nick Ing-Simmons Mailing-List: contact overseers-help@sourceware.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: , Sender: overseers-owner@sourceware.org X-SW-Source: 2005-q4/txt/msg00266.txt.bz2 Could you please fix your email system, or resubscribe with a competent email provider, your subscription to gcc appears to be replicating emails and resending to the entire list: ? 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(laurent%guerby.net@82.235.162.148) by ns0.ovh.net with SMTP; Tue, 29 Nov 2005 19:51:45 +0000 Date: Tue, 29 Nov 2005 20:51:40 +0100 From: Laurent GUERBY Subject: Re: Performance regression testing? In-reply-to: <76D4B0B5-460D-4B79-906B-6CC6B50F03D7@apple.com> Sender: gcc-owner@gcc.gnu.org To: Mike Stump Cc: Mark Mitchell , gcc mailing list Message-id: <1133293900.31007.216.camel@pc.site> MIME-version: 1.0 Content-type: text/plain Content-transfer-encoding: 7bit Precedence: bulk Delivered-to: mailing list gcc@gcc.gnu.org Delivered-to: nick@ing-simmons.net Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm X-Server-Uuid: 241911D6-425B-44B9-A073-E3FE0F8FC774 X-Server-Uuid: C8FB4D43-1108-484A-A898-3CBCC7906230 X-Spam-Check-By: sourceware.org X-Ovh-Remote: 82.235.162.148 (gut75-4-82-235-162-148.fbx.proxad.net) X-Ovh-Local: 213.186.33.20 (ns0.ovh.net) X-Spam-Check: fait|type 1&3|0.0|H 0.5 X-IsSubscribed: yes X-Mail-Handler: MailHop by DynDNS X-Spam-Score: -2.6 (--) X-pstn-levels: (S:99.90000/99.90000 R:95.9108 P:95.9108 M:97.0232 C: 98.7678 ) X-pstn-settings: 3 (1.0000:1.0000) s gt3 gt2 gt1 r p m c X-pstn-addresses: from [db-null] X-WSS-ID: 6F926D1040887302-01-01 X-WSS-ID: 6F9353B93286858402-16-01 References: <438BA322.9000900@codesourcery.com> <76D4B0B5-460D-4B79-906B-6CC6B50F03D7@apple.com> List-Post: List-Unsubscribe: List-Archive: List-Help: Original-recipient: rfc822;mrs@apple.com X-OriginalArrivalTime: 29 Nov 2005 20:49:53.0880 (UTC) FILETIME=[731D7580:01C5F526] On Mon, 2005-11-28 at 17:55 -0800, Mike Stump wrote: > My feeling is that we should have such a suite. I'd favor a micro > style, where we are measuring clock cycles (on machines that can > expose them x86/v9), [...] A while ago I looked at rdtsc on x86-linux, but I couldn't find a way, other than statistical / multiple runs and take minimum, to known how many context switch happened between two points in the measured code. Is this number available in some ways? Laurent