linux-kernel - Re: [PATCH] Add an offset in the cyc2ns computation to fix sched

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Message-Id: <1174069846.3101.113.camel@imap.mvista.com>
Date:	Fri, 16 Mar 2007 11:30:46 -0700
From:	Daniel Walker <dwalker@...sta.com>
To:	Guillaume Chazarain <guichaz@...il.com>
Cc:	Andi Kleen <ak@...e.de>, john stultz <johnstul@...ibm.com>,
	mathieu.desnoyers@...ymtl.ca, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Add an offset in the cyc2ns computation to fix
	sched_clock jumps

On Fri, 2007-03-16 at 19:14 +0100, Guillaume Chazarain wrote:
> Hello,
> 
> The scheduling problems I reported in the thread:
> http://lkml.org/lkml/2007/3/3/128
> are caused by the set_cyc2ns_scale() function called when the CPU speed changes.
> Changing the scale causes a warp in the value returned by sched_clock().
> 

Did you explain what the "werirdnes" was exactly? If not, could you?

Daniel

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