From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753875Ab2BQCfq (ORCPT ); Thu, 16 Feb 2012 21:35:46 -0500 Received: from e23smtp01.au.ibm.com ([202.81.31.143]:51211 "EHLO e23smtp01.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751800Ab2BQCfp (ORCPT ); Thu, 16 Feb 2012 21:35:45 -0500 Message-ID: <4F3DBCD8.2020505@linux.vnet.ibm.com> Date: Fri, 17 Feb 2012 10:35:04 +0800 From: Xiao Guangrong User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20120131 Thunderbird/10.0 MIME-Version: 1.0 To: Pradeep Kumar CC: LKML , KVM Subject: Re: KVM: perf: a smart tool to analyse kvm events References: <20120216155248.6865.47935.sendpatchset@localhost.localdomain> In-Reply-To: <20120216155248.6865.47935.sendpatchset@localhost.localdomain> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit x-cbid: 12021616-1618-0000-0000-000000D3407C Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/16/2012 11:52 PM, Pradeep Kumar wrote: > Xiao, > > i tried your perf events patch set on RHEL 6.1 host and failed to trace kvm-events with below error message. > > [root@kvm perf]# ./perf kvm-events report > Warning: unknown op '{' > Warning: Error: expected type 5 but read 1 > Warning: failed to read event print fmt for hrtimer_start > Warning: unknown op '{' > Warning: Error: expected type 5 but read 1 > Warning: failed to read event print fmt for hrtimer_expire_entry > Analyze events for all VCPUs: > VM-EXIT Samples Samples% Time% Avg time > Total Samples:0, Total events handled time:0.00us. > [root@kvm perf]# > Thanks for your try, Pradeep! It seems that kvm events do not be recorded. Do your guest was running when kvm-events was executed? What is the output of "./perf script | grep kvm_*"?