linux-kernel - Re: [patch 0/9] x86_64: reliable TSC-based gettimeofday

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Message-ID: <20070201115336.GC13277@opteron.random>
Date:	Thu, 1 Feb 2007 12:53:36 +0100
From:	Andrea Arcangeli <andrea@...e.de>
To:	Andi Kleen <ak@...e.de>
Cc:	jbohac@...e.cz, linux-kernel@...r.kernel.org,
	Vojtech Pavlik <vojtech@...e.cz>, ssouhlal@...ebsd.org,
	arjan@...radead.org, tglx@...utronix.de, johnstul@...ibm.com,
	zippel@...ux-m68k.org
Subject: Re: [patch 0/9] x86_64: reliable TSC-based gettimeofday

On Thu, Feb 01, 2007 at 12:20:59PM +0100, Andi Kleen wrote:
> I think a better way to do this would be to define a new CLOCK_THREAD_MONOTONOUS
> (or better name) timer for clock_gettime(). 
> 
> [and my currently stalled vdso patches that implement clock_gettime
> as a vsyscall]
> 
> Then also an application could easily use it with LD_PRELOAD

I think a prctl to enable the non monothone mode is better than any
LD_PRELOAD trick.
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