> Is a conditional cheaper than a divide? In case of a misprediction I > would assume it to be significantly slower and I don't know the ratio > of mispredictions for this branch.
A quick scan of the web shows 40 cycles for athlon64 idiv, and its similarly slow on many other cpus. Even assuming you mispredict every branch its going to be a win. Anton - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html