> We routinely expect 2 to 3 u-s jitters on an Atom board running a 32 bit, > RTAI enhanced build of what is by now a 5 year old kernel. This is > extremely board sensitive, and that same kernel running on this 4 core > phenom, cannot stay inside of 40 u-s. A case of more horsepower not being > a good deal at all.
Can't speak for AMD devices but I would be curious to know more on the Intel side about this and how you measured and analysed it. Are you running with any hyperthreading disabled, a firmware which is not using SMM, and with any critical code pinned in cache ? How do you have power management set up ? (probably best taken off list) Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
