[PATCH] ARM: imx: always use TWD on IMX6Q
shawnguo at kernel.org
Tue Apr 12 01:04:11 PDT 2016
On Wed, Apr 06, 2016 at 05:39:07PM +0200, Sebastian Andrzej Siewior wrote:
> There is no reason to limit the TWD to be used on SMP kernels only if the
> hardware has it available.
> On Wandboard i.MX6SOLO, running PREEMPT-RT and cyclictest I see as max
> immediately after start in idle:
> UP : ~90us
> SMP: ~50us
> UP + TWD: ~20us.
> Based on this numbers I prefer the TWD over the slightly slower MXC
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
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