Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757699Ab0DWPlM (ORCPT ); Fri, 23 Apr 2010 11:41:12 -0400 Received: from tx2ehsobe003.messaging.microsoft.com ([65.55.88.13]:45576 "EHLO TX2EHSOBE006.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757626Ab0DWPlI (ORCPT ); Fri, 23 Apr 2010 11:41:08 -0400 X-SpamScore: -8 X-BigFish: VPS-8(zz14e0M62a3Lzz1202hzz6ff19hz32i2a8h61h) X-Spam-TCS-SCL: 0:0 X-WSS-ID: 0L1C684-01-DEK-02 X-M-MSG: Date: Fri, 23 Apr 2010 17:40:51 +0200 From: Robert Richter To: Ingo Molnar CC: LKML , oprofile-list Subject: [GIT PULL] updates for oprofile Message-ID: <20100423154050.GN6450@erda.amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) X-OriginalArrivalTime: 23 Apr 2010 15:40:51.0430 (UTC) FILETIME=[5A5EA060:01CAE2FB] X-Reverse-DNS: ausb3extmailp02.amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2659 Lines: 82 Ingo, please pull oprofile updates from: git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile.git core You might want to pull from 'for-next' instead that includes an additional merge with tip/tracing/core to resolve conflicts with that branch. Thanks. -Robert -- commit b971f06187d83b5c03d2b597cccdfef421c0ca91 Merge: cb6e943 c1ab9ca Author: Robert Richter Date: Fri Apr 23 16:47:51 2010 +0200 Merge commit 'tip/tracing/core' into oprofile/core Conflicts: drivers/oprofile/cpu_buffer.c Signed-off-by: Robert Richter commit cb6e943ccf19ab6d3189147e9d625a992e016084 Author: Andi Kleen Date: Thu Apr 1 03:17:25 2010 +0200 oprofile: remove double ring buffering oprofile used a double buffer scheme for its cpu event buffer to avoid races on reading with the old locked ring buffer. But that is obsolete now with the new ring buffer, so simply use a single buffer. This greatly simplifies the code and avoids a lot of sample drops on large runs, especially with call graph. Based on suggestions from Steven Rostedt For stable kernels from v2.6.32, but not earlier. Signed-off-by: Andi Kleen Cc: Steven Rostedt Cc: stable Signed-off-by: Robert Richter commit a36bf32e9e8a86f291f746b7f8292e042ee04a46 Merge: bc078e4 01bf0b6 Author: Robert Richter Date: Fri Apr 23 14:30:22 2010 +0200 Merge commit 'v2.6.34-rc5' into oprofile/core commit bc078e4eab65f11bbaeed380593ab8151b30d703 Author: Martin Schwidefsky Date: Tue Mar 2 16:01:10 2010 +0100 oprofile: convert oprofile from timer_hook to hrtimer Oprofile is currently broken on systems running with NOHZ enabled. A maximum of 1 tick is accounted via the timer_hook if a cpu sleeps for a longer period of time. This does bad things to the percentages in the profiler output. To solve this problem convert oprofile to use a restarting hrtimer instead of the timer_hook. Signed-off-by: Martin Schwidefsky Signed-off-by: Robert Richter -- Advanced Micro Devices, Inc. Operating System Research Center email: robert.richter@amd.com -- 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/