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    SubjectRe: [RFC 10/12][PATCH] SCHED_DEADLINE: group bandwidth management code
    On Mon, 2009-12-28 at 15:51 +0100, Peter Zijlstra wrote:
    > On Fri, 2009-10-16 at 17:46 +0200, Raistlin wrote:
    > > CPU Container Groups support for SCHED_DEADLINE is introduced by this commit.
    > >
    > > CGroups, if configured, have a SCHED_DEADLINE bandwidth, and it is enforced
    > > that the sum of the bandwidths of entities (tasks and groups) belonging to
    > > a group stays below its own bandwidth.
    > No real comment on the code here, but since we have a deadline bandwidth
    > reservation, should we not also couple to the existing rt (fifo)
    > bandwidth reservation?
    > We can't after all guarantee the FIFO time if there's deadline
    > reservations around for more.
    Mmm... If I'm getting this right, you're suggesting to decrease from the
    available system rt-bandwidth the bandwidth devoted to deadline

    This make more than sense to me... I'll think about how to make the code
    reflect that.

    Thanks and regards,

    <<This happens because I choose it to happen!>> (Raistlin Majere)
    Dario Faggioli, ReTiS Lab, Scuola Superiore Sant'Anna, Pisa (Italy) / /
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