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Re: [Xen-devel] [PATCH v6 6/8] xen/arm: introduce GNTTABOP_cache_flush



>>> On 16.10.14 at 19:29, <stefano.stabellini@xxxxxxxxxxxxx> wrote:
> In any case the default max (32 frames) means 16000 iterations, that
> would take around 32000ns on a not very modern system. I don't think is
> that bad. And of course it is just the theoretical worst case.

2ns per iteration when there are 3 conditionals in the loop body
seems rather optimistic to me.

Jan


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