Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com DomainKey-Signature: a=rsa-sha1; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=THoRrsitVfZ0Tc7t4e/UFdrk9NrBzwTW6yERM0D4HGz+PrcPUCH9VrW/JDvdK9BpJ+l2Du+0J6zUidm1M96uqY4xtZ2GEzCTS2OzvgK7LGLAZiDEcPl0w7RUVS7QnzHlgL1Z4+R6OHuiyTuF/azBcBiMfro0XxdugEvqer1PVBo Message-ID: Date: Wed, 20 Oct 2004 09:01:12 -0400 From: Robert Pendell Reply-To: Robert Pendell To: cygwin@cygwin.com Subject: Re: High resolution process timing In-Reply-To: <20041020111237.79849.qmail@web54304.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <20041020111237.79849.qmail@web54304.mail.yahoo.com> X-IsSubscribed: yes Search google for "windows high resolution timer" (no quotes) and that will probably give some answers. On Wed, 20 Oct 2004 12:12:37 +0100 (BST), Lionel B wrote: > Greetings, > > Is it possible in Cygwin (W2k, Pentium 4, gcc 3.3.3) to access a higher > resolution (or perhaps I mean "granularity") process CPU timer than the libc > clock() call? I am finding clock() inadequate for some code benchmarking. > > [It is not clear to me whether this is indeed a Cygwin issue, or rather a > Windows issue and therefore OT here - apologies if so]. > > Having browsed the archives, it seems that it may well be possible to access > high-resolution *system* timers (perhaps using NT API calls to > QueryPerformanceCounter() & family), but I can see no way to achieve > per-process timing this way. > > Any pointers appreciated, > > -- > Lionel B > > ___________________________________________________________ALL-NEW Yahoo! Messenger - all new features - even more fun! http://uk.messenger.yahoo.com > > -- > Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple > Problem reports: http://cygwin.com/problems.html > Documentation: http://cygwin.com/docs.html > FAQ: http://cygwin.com/faq/ > > -- Robert Pendell shinji257@gmail.com -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/