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    SubjectRe: CFS review
    Hi,

    On Wed, 1 Aug 2007, Linus Torvalds wrote:

    > So I think it would be entirely appropriate to
    >
    > - do something that *approximates* microseconds.
    >
    > Using microseconds instead of nanoseconds would likely allow us to do
    > 32-bit arithmetic in more areas, without any real overflow.

    The basic problem is that one needs a number of bits (at least 16) for
    normalization, which limits the time range one can work with. This means
    that 32 bit leaves only room for 1 millisecond resolution, the remainder
    could maybe saved and reused later.
    So AFAICT using micro- or nanosecond resolution doesn't make much
    computational difference.

    bye, Roman
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