[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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.


Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.