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On Fri, 2005-05-13 at 22:51 +0000, linux@horizon.com wrote: > If RDTSC is too annoying to disable, just interpret the same flag as a > "schedule me solo" flag that prevents scheduling anything else (at least, > not sharing the same ->mm) on the other virtual processor. (Of course, > the time should count double for scheduler fairness purposes.) rdtsc is so unreliable on current hardware that no userspace app should be using it anyway; it's not synchronized on SMP, powermanagement impacts the rate of the ticks all the time etc etc. Basically it's worthless on modern machines for anything but in-kernel busy loops. - 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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