Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751722Ab0DUF3w (ORCPT ); Wed, 21 Apr 2010 01:29:52 -0400 Received: from e23smtp04.au.ibm.com ([202.81.31.146]:46517 "EHLO e23smtp04.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750852Ab0DUF3v (ORCPT ); Wed, 21 Apr 2010 01:29:51 -0400 Content-Type: text/plain; charset=UTF-8 Cc: Paul Mackerras , Peter Zijlstra , Arnaldo Carvalho de Melo , Ingo Molnar , ppc-dev , LKML Mailing List Subject: Re: perf top broken on ppc64 From: Ian Munsie To: Alexander Graf In-reply-to: <594EC076-62C6-473D-9AF2-47AEE4B57ED3@suse.de> References: <594EC076-62C6-473D-9AF2-47AEE4B57ED3@suse.de> Date: Wed, 21 Apr 2010 15:29:19 +1000 Message-Id: <1271827490-sup-48@au1.ibm.com> User-Agent: Sup/0.10.2 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 872 Lines: 22 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? Cheers, -Ian -- 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/