If it exists, and works :-/
> It's clearly stupid in the long run to depend on the TSC synchronization.
> We should consider different CPU's to be different clock-domains, and just
> synchronize them using the primitives we already have (hey, people can use
> ntp to synchronize over networks quite well, and that's without the kind
> of synchronization primitives that we have within the same box).
Synchronizing them is nice, since it makes RDTSC usable in user
space (without nodelocking.) If it ain't doable, then it ain't.
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