Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757676Ab0KLPAQ (ORCPT ); Fri, 12 Nov 2010 10:00:16 -0500 Received: from smtp-out.google.com ([74.125.121.35]:27882 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752910Ab0KLPAO (ORCPT ); Fri, 12 Nov 2010 10:00:14 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=google.com; s=beta; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=UPehfkMfEU0Csg0w7Jjp4FxoXS0btrNzuHhHLDJbr5LliBKnEuXn4TX+BKAg7ayhmY tdii76a+ARsH8ViWCh9w== MIME-Version: 1.0 In-Reply-To: <20101112133019.GA5595@nowhere> References: <4CDC3845.4030104@linux.intel.com> <4CDC4628.8020109@linux.vnet.ibm.com> <20101111194936.GJ18718@basil.fritz.box> <1289505587.2084.193.camel@laptop> <20101111201259.GL18718@basil.fritz.box> <1289507858.2084.195.camel@laptop> <20101112102748.GA8020@basil.fritz.box> <1289561817.2084.240.camel@laptop> <20101112133019.GA5595@nowhere> Date: Fri, 12 Nov 2010 16:00:10 +0100 Message-ID: Subject: Re: [PATCH 2/3] perf: Add support for extra parameters for raw events From: Stephane Eranian To: Frederic Weisbecker Cc: Peter Zijlstra , Andi Kleen , Corey Ashford , Andi Kleen , linux-kernel@vger.kernel.org, mingo@elte.hu, acme@redhat.com, paulus Content-Type: text/plain; charset=UTF-8 X-System-Of-Record: true Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1354 Lines: 29 On Fri, Nov 12, 2010 at 2:30 PM, Frederic Weisbecker wrote: > On Fri, Nov 12, 2010 at 02:00:43PM +0100, Stephane Eranian wrote: >> On Fri, Nov 12, 2010 at 12:36 PM, Peter Zijlstra wrote: >> > On Fri, 2010-11-12 at 11:49 +0100, Stephane Eranian wrote: >> >> The difficulty with PEBS-LL (load latency) is not so much the encoding of the >> >> latency. It is more how to expose the data back to user. You get a full PEBS >> >> record for each miss. So you get the PEBS machine state + data addr, miss >> >> latency, and data source (where did the line come from). We have already >> >> discussed how to expose machine state in general. I'll work on a patch for this. >> > >> > Frederic was working on this PERF_SAMPLE_REGS stuff as well for his copy >> > the stack top and let dwarfs go wild at it patches. >> > >> Ok, I'll talk to him again about this then. > > > Would you like me to respin this isolated chunk of my dwarf cfi unwinding patchset? > So that we can discuss the ABI. > I'd like to see your proposed kernel API to expose machine state. > Thanks. > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/