From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pz0-f51.google.com (mail-pz0-f51.google.com [209.85.210.51]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 011EA1007D6 for ; Fri, 2 Mar 2012 05:00:18 +1100 (EST) Received: by dady9 with SMTP id y9so1149785dad.38 for ; Thu, 01 Mar 2012 10:00:16 -0800 (PST) Message-ID: <4F4FB92B.9080106@gmail.com> Date: Thu, 01 Mar 2012 11:00:11 -0700 From: David Ahern MIME-Version: 1.0 To: Victor Jimenez , linuxppc-dev@lists.ozlabs.org Subject: Re: Sampling instruction pointer on PPC References: <4F4FACFA.6080209@bsc.es> In-Reply-To: <4F4FACFA.6080209@bsc.es> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linux-perf-users@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , [Added linuxppc-dev list.] On 3/1/12 10:08 AM, Victor Jimenez wrote: > I am trying to sample instruction pointer along time on a Power7 system. > I know that there are accurate mechanisms to do so in Intel processors > (e.g., PEBS and Branch Trace Store). > > Is it possible to do something similar in Power7? Will the samples be > accurate? I am worried that significant delays (skids) may appear. > > Thank you, > Victor > > WARNING / LEGAL TEXT: This message is intended only for the use of the > individual or entity to which it is addressed and may contain > information which is privileged, confidential, proprietary, or exempt > from disclosure under applicable law. If you are not the intended > recipient or the person responsible for delivering the message to the > intended recipient, you are strictly prohibited from disclosing, > distributing, copying, or in any way using this message. If you have > received this communication in error, please notify the sender and > destroy and delete any copies you may have received. > > http://www.bsc.es/disclaimer.htm > -- > To unsubscribe from this list: send the line "unsubscribe > linux-perf-users" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html