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    SubjectRe: [PATCH] Read-Copy Update 2.5.4-pre2
    On Fri, 2002-02-08 at 18:51, Mark Hahn wrote:

    > yes, but have you evaluated whether it's noticably better than
    > other forms of locking? for instance, couldn't your dcache example
    > simply use BR locks?

    Good point.

    One of the things with implicit locking schemes like RCU is that the
    performance hit merely shifts. Reading the data may no longer have any
    overhead, but the hit is taken elsewhere. One most be careful in
    benchmarking RCU locking.

    Robert Love

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