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Date: Sun, 2 Dec 2007 14:57:55 +0100
From: Ingo Molnar <mingo@elte.hu>
To: =?iso-8859-1?Q?J=F6rn?= Engel <joern@logfs.org>
Cc: Mark Lord <lkml@rtr.ca>, Pavel Machek <pavel@ucw.cz>,
       Mark Lord <liml@rtr.ca>, Thomas Gleixner <tglx@linutronix.de>,
       len.brown@intel.com, Andrew Morton <akpm@linux-foundation.org>,
       linux-kernel@vger.kernel.org, linux-pm@lists.linux-foundation.org,
       rjw@sisk.pl
Subject: Re: [BUG] Strange 1-second pauses during Resume-from-RAM
Message-ID: <20071202135755.GB20434@elte.hu>
References: <20071130183510.GA1570@lazybastard.org> <20071130184625.GB9928@elte.hu> <20071201151650.GA5031@lazybastard.org> <20071201183256.GA14052@elte.hu> <20071201204747.GA6458@lazybastard.org> <20071201205456.GA8231@elte.hu> <20071201234112.GA7209@lazybastard.org> <20071202085607.GA28966@elte.hu> <20071202113143.GA9378@lazybastard.org> <20071202123125.GA9516@lazybastard.org>
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* Jörn Engel <joern@logfs.org> wrote:

> On Sun, 2 December 2007 12:31:43 +0100, Jörn Engel wrote:
> > 
> > This time not even the offsets have changed.  Dump is identical.
> 
> After another ten or so notrace annotations throughout the spinlock 
> code, the latency tracer appears to work.  Not sure how many useful 
> information is missing through all the annotations, though.

a few annotations out of thousands of function calls in the kernel it's 
usually not significant.

	Ingo