From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755780AbZAUX7W (ORCPT ); Wed, 21 Jan 2009 18:59:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754537AbZAUX6L (ORCPT ); Wed, 21 Jan 2009 18:58:11 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:42885 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754323AbZAUX6I (ORCPT ); Wed, 21 Jan 2009 18:58:08 -0500 Message-Id: <20090121235306.224764198@goodmis.org> User-Agent: quilt/0.46-1 Date: Wed, 21 Jan 2009 18:53:06 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Frederic Weisbecker Subject: [PATCH 0/5] ftrace: updates for tip Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ingo, These patches are fixes for the wakeup tracer. The first is a fix to the empty output you reported to me earlier. The second is a fix for the ring buffer to not record updates if it is disabled, otherwised you can get empty traces there too. The third is the wakeup change to record all tasks and not just realtime tasks. It adds a wakeup_rt tracer to record only rt tasks. The forth is the addition of the scheduling wakeup and sched switch output to the wakeup tracer. This is very helpful data. The last is probably the most important, and should go into 29 as well. I never reset the timestamps used to connect the trace stamps in the buffers. This can cause stale stamps to appear and explains some of the really bad timestamps in the buffer I've seen. -- Steve The following patches are in: git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git branch: tip/devel Steven Rostedt (5): trace: do not disable wake up tracer on output of trace ring-buffer: do not swap if recording is disabled trace: separate out rt tasks from wakeup tracer wakeup-tracer: show scheduling data in output ring-buffer: reset timestamps when ring buffer is reset ---- kernel/trace/ring_buffer.c | 18 ++++++++ kernel/trace/trace.c | 2 +- kernel/trace/trace_sched_wakeup.c | 78 ++++++++++++++++++++----------------- 3 files changed, 61 insertions(+), 37 deletions(-) --