Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753631Ab0DUJ3v (ORCPT ); Wed, 21 Apr 2010 05:29:51 -0400 Received: from cantor2.suse.de ([195.135.220.15]:38037 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753591Ab0DUJ3u convert rfc822-to-8bit (ORCPT ); Wed, 21 Apr 2010 05:29:50 -0400 Subject: Re: perf top broken on ppc64 Mime-Version: 1.0 (Apple Message framework v1078) Content-Type: text/plain; charset=us-ascii From: Alexander Graf In-Reply-To: <1271827490-sup-48@au1.ibm.com> Date: Wed, 21 Apr 2010 11:29:44 +0200 Cc: Paul Mackerras , Peter Zijlstra , Arnaldo Carvalho de Melo , Ingo Molnar , ppc-dev , LKML Mailing List Content-Transfer-Encoding: 8BIT Message-Id: <12E39DE6-0957-43CD-8DD4-24970AAF45D3@suse.de> References: <594EC076-62C6-473D-9AF2-47AEE4B57ED3@suse.de> <1271827490-sup-48@au1.ibm.com> To: Ian Munsie X-Mailer: Apple Mail (2.1078) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1102 Lines: 30 On 21.04.2010, at 07:29, Ian Munsie wrote: > Excerpts from Alexander Graf's message of Wed Apr 21 09:21:36 +1000 2010: >> Hi, >> >> While trying to find out performance bottlenecks in KVM for PowerPC I >> figured I'd try and use "perf top" to see what's going on in the >> system. This works great on my G4, but doesn't on the Powerstation >> (970MP). >> >> The only weird thing I can imagine about this setup is that I'm >> running 32 bit userland on a 64 bit kernel. So I went ahead and >> compiled perf for ppc64 - without any change: > > I'm using 32 bit userland and 64 bit kernel on a PowerPC box and it's working for me. > Are you building perf from the tip tree? I'm using kvm.git which is pretty close to tip. The version says something 2.6.34-rc3'ish. Has anything significantly changed since then? Either way - I'll give it a try. Alex -- 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/