That may present an unacceptable cost to a RT application. Copying a
page can easily take 100 microseconds. If Linux ever has the ability
to pin a RT process to a CPU, that process should never be delayed if
it doesn't ask to I/O (assuming it's mlock(2)ed all it's pages).
Moving to another physical page is contrary to the spirit of mlock(2),
IMO.
Regards,
Richard....
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