it is the same! does not matter what is in the new queue if new scheduler is not active, it is as process are waiting. Another way is to have more scheduler per I/O like process scheduler, but this is an unusefull overload. I don't think it's a matter of changing I/O scheduler seconds by seconds, but, at worst hour by hour, and the thread that want disk attention have to respect other request and scheduler queue policy (or does it exists a super policy that all scheduler respect? this would be a viable way to define a complex but efficent policy and subpolicy).
(sorry for exclamation)
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