On 18.04.2012, at 18:01, Bharat Bhushan wrote:

> Time for which the hrtimer is started for decrementer emulation is calculated 
> using tb_ticks_per_usec. While hrtimer uses the clockevent for DEC 
> reprogramming (if needed) and which calculate timebase ticks using the 
> multiplier and shifter mechanism implemented within clockevent layer. It was 
> observed that this conversion (timebase->time->timebase) are not correct 
> because the mechanism are not consistent. In our setup it adds 2% jitter.
> 
> With this patch clockevent multiplier and shifter mechanism are used when 
> starting hrtimer for decrementer emulation. Now the jitter is < 0.5%.
> 
> Signed-off-by: Bharat Bhushan <bharat.bhus...@freescale.com>

Thanks, applied to kvm-ppc-next with fixed commit message and fixed trailing 
whitespace :).


Alex

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