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Jun. 30th, 2013 (UTC)

On predictability,
> Linux kernel's -rt patchset could achieve latencies in the low
> tens of microseconds.
To achieve low tens of microseconds, if -rt patchset provides the necessary s/w infrastructure, there are still a lot of h/w issues to address:
SMIs, shared LLC, memory bandwidth shared sith GPU, Power management, interrupt and PCIe timing jitter, HT, etc - each can break or almost break it.

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