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    SubjectRe: [PATCH 4/4, v2] x86: enlightenment for ticket spin locks - improve yield behavior on Xen
    On Tue, 2010-06-29 at 15:35 +0100, Jan Beulich wrote:
    > The (only) additional overhead this introduces for native execution is
    > the writing of the owning CPU in the lock acquire paths.

    Uhm, and growing the size of spinlock_t to 6 (or 8 bytes when aligned)
    bytes when NR_CPUS>256.

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      Last update: 2010-06-30 10:13    [W:0.022 / U:4.108 seconds]
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