Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756809Ab2BBRZm (ORCPT ); Thu, 2 Feb 2012 12:25:42 -0500 Received: from mail-gx0-f174.google.com ([209.85.161.174]:48468 "EHLO mail-gx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756702Ab2BBRZj (ORCPT ); Thu, 2 Feb 2012 12:25:39 -0500 Message-ID: <4F2AC707.7020801@gmail.com> Date: Fri, 03 Feb 2012 01:25:27 +0800 From: Xiao Guangrong User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20111222 Thunderbird/9.0 MIME-Version: 1.0 To: Avi Kivity CC: Marcelo Tosatti , Ingo Molnar , Arnaldo Carvalho de Melo , Stefan Hajnoczi , LKML , KVM Subject: [PATCH v2] KVM: perf: a smart tool to analyse kvm events Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1463 Lines: 36 Changlog: - calculate stddev. - make it works both for old kernel and new kernel. - dynamically inquire max vcpus and cpu isa. This is a example result of vmexit: # ./perf kvm-events report Warning: Error: expected type 5 but read 4 Warning: Error: expected type 5 but read 0 Warning: unknown op '}' Analyze events for all VCPUs: VM-EXIT Samples Samples% Time% Avg time APIC_ACCESS 152367 34.07% 1.74% 15.69us ( +- 2.02% ) IO_INSTRUCTION 142663 31.90% 1.76% 16.91us ( +- 2.87% ) HLT 46681 10.44% 95.87% 2816.04us ( +- 2.94% ) EPT_VIOLATION 40184 8.98% 0.15% 5.17us ( +- 1.26% ) CPUID 21284 4.76% 0.04% 2.47us ( +- 0.66% ) EXTERNAL_INTERRUPT 21215 4.74% 0.36% 23.39us ( +- 2.83% ) EXCEPTION_NMI 11723 2.62% 0.04% 5.21us ( +- 2.46% ) CR_ACCESS 5810 1.30% 0.02% 5.06us ( +- 1.01% ) PENDING_INTERRUPT 5322 1.19% 0.01% 3.69us ( +- 1.73% ) Total Samples:447249, Total events handled time:137125528.85us. Any comments are welcome! :) -- 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/