From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerrit Binnenmars Subject: Re: CONFIG_CRITICAL_IRQSOFF_TIMING Date: Tue, 30 Oct 2007 22:09:48 +0100 (CET) Message-ID: <6252335.1612671193778588591.JavaMail.www@wwinf6102> Reply-To: gerritbinnenmars@wanadoo.nl Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: linux-rt-users@vger.kernel.org To: Daniel Walker Return-path: Received: from smtp-2.orange.nl ([193.252.22.242]:50494 "EHLO smtp-2.orange.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754219AbXJ3VJt (ORCPT ); Tue, 30 Oct 2007 17:09:49 -0400 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf6106.orange.nl (SMTP Server) with ESMTP id 9F11F7000089 for ; Tue, 30 Oct 2007 22:09:48 +0100 (CET) Sender: linux-rt-users-owner@vger.kernel.org List-Id: linux-rt-users.vger.kernel.org > Datum: 30/10/07 10:02 PM > Van: "Daniel Walker" > Aan: gerritbinnenmars@wanadoo.nl > CC: linux-rt-users@vger.kernel.org > Onderwerp : Re: CONFIG_CRITICAL_IRQSOFF_TIMING > > On Tue, 2007-10-30 at 21:52 +0100, Gerrit Binnenmars wrote: > > > CONFIG_LTT_PROBE_LOCKING=m > > # CONFIG_LTT_PROBE_STACK is not set > > I wonder which kernel your using? I don't recall LTT being part of real > time in the past .. What the architecture too ? Hello Daniel, I use version 2.6.22.1-rt4, see the following link for LTT compatibility http://ltt.polymtl.ca/svn/ltt/branches/poly/doc/developer/lttng-lttv-compatibility.html I have used LTT on both i386 an on a PowerPC (MPC8555) architecture. It is a great help in understanding real-time behaviour. Gerrit > > > CONFIG_CRITICAL_IRQSOFF_TIMING=y > > CONFIG_INTERRUPT_OFF_HIST=y > > CONFIG_CRITICAL_TIMING=y > > CONFIG_DEBUG_TRACE_IRQFLAGS=y > > CONFIG_LATENCY_TIMING=y > > You might try disabling the histogram option temporarily, it may have be > effecting things (not sure how tho) .. > > Daniel > > - > To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > >