Re: [PATCH] simplify update_times (avoid jiffies/jiffies_64 aliasing problem)
From: Martin Schwidefsky
Date: Wed Aug 02 2006 - 08:48:19 EST
On 8/1/06, Atsushi Nemoto <anemo@xxxxxxxxxxxxx> wrote:
> I think that this is going into the wrong direction. There are a
> number of architectures that call do_timer(regs) in a while loop. It
> would be much nicer if do_timer would get the number of passed ticks
> as an argument. And the "regs" argument to do_timer is just useless.
But normally do_timer() is called just once, isn't it? These loops
are just for lost ticks, which would be rarely happened. So I think
tunning for usual case is better.
If you switch of the hz timer in idle you'll get lots of lost ticks.
And if you are
running a virtualized system you can loose you cpu for some ticks as well.
Pass the number of ticks to do_timer.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/