From owner-freebsd-arch@FreeBSD.ORG Thu Mar 20 06:08:36 2008 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D68061065675 for ; Thu, 20 Mar 2008 06:08:36 +0000 (UTC) (envelope-from joseph.koshy@gmail.com) Received: from rv-out-0910.google.com (rv-out-0910.google.com [209.85.198.189]) by mx1.freebsd.org (Postfix) with ESMTP id A2FD28FC22 for ; Thu, 20 Mar 2008 06:08:36 +0000 (UTC) (envelope-from joseph.koshy@gmail.com) Received: by rv-out-0910.google.com with SMTP id g13so478524rvb.43 for ; Wed, 19 Mar 2008 23:08:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=RRozQJ7SF+k7vEKt+CL/cWVzMWQ4yHEHZA+2AJhqwPY=; b=t6K7JW9zE/9UfI5eWtrr2/7aIe+gVPUE+Abc8NdnTt118baGBpxRQ5EZgWNtFnnDcIYom6/vpORJonk6QhAjyxFYqQIikekoxh3wNs91IelEIMOG0w8yne7n5vqH9Y4VhziB0jsXmMP4ILU03vtwU4dcstFinR5P/l3YbZaUtYc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=FCD8s62ouBHEdODvYMXLkyoLfHFyDID5YUNbodu7MNdDWLtimLxNbOdEeys6QA+U+KAr46qWmc7Q1dUGjwIsKsdZ2zv9XDaSHFWtUjQK6wX6slMojKaOg+uRh6ohhmZAzbV1a5H00+gsBSoUXQZCeXS/7wJRZVX/O0wtRp2upiY= Received: by 10.140.147.13 with SMTP id u13mr570013rvd.228.1205993315505; Wed, 19 Mar 2008 23:08:35 -0700 (PDT) Received: by 10.141.85.7 with HTTP; Wed, 19 Mar 2008 23:08:35 -0700 (PDT) Message-ID: <84dead720803192308l59b2fd02qa2a05729f8fe494e@mail.gmail.com> Date: Thu, 20 Mar 2008 11:38:35 +0530 From: "Joseph Koshy" To: "Brooks Davis" In-Reply-To: <20080317144251.GA38485@lor.one-eyed-alien.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080313180805.GA83406@dragon.NUXI.org> <200803141431.53846.jhb@freebsd.org> <84dead720803142243r6c8cc68dm325e7fb925189fd@mail.gmail.com> <200803170947.25205.jhb@freebsd.org> <20080317144251.GA38485@lor.one-eyed-alien.net> Cc: freebsd-arch@freebsd.org Subject: Re: [PATCH] hwpmc(4) changes to use 'mp_maxid' instead of 'mp_ncpus'. X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Mar 2008 06:08:36 -0000 > We should take some care to make sure we don't over generalize. hwpmc(4) today handles Intel P4 counters; those are moderately complex in terms of architecture. > If nothing else, these counters could be even more useful on CPU-poor embedded > devices. Conventional PMCs should be supportable without much ado. Koshy