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On Mon, 2003-01-20 at 22:58, Joe Korty wrote: > The new, preemptable spin_lock() spins on an atomic bus-locking > read/write instead of an ordinary read, as the original spin_lock > implementation did. Perhaps that is the source of the inefficiency > being seen. Its a fairly critical "Never do this" on older intel processors and kills the box very efficiently so your diagnosis is extremely plausible - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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