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    SubjectRe: [PATCH] Make highly niced processes run only when idle

    > > Even better would be to keep the process at low priority while in userland
    > > and reverts to normal "nice" priority while in kernelspace.
    > But the point of a SCHED_IDLE would be to only run them while idle, so
    > they can still never even get the CPU.
    > Ahh ... wait, do you mean periodically run them, but only give them the
    > boost while they are in kernel space? Very good idea. Can you see an
    > easy way to do this?

    This was done before... As I wrote... Make it flag similar to "this is
    being ptraced" to get out of fast path, and rest is easy. Unset
    "low_priority" on entering of kernel, and set it back on exit from

    "I do not steal MS software. It is not worth it."
    -- Pavel Kankovsky
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