On Mon, Feb 08, 2016 at 11:40:15AM +0000, Marc Zyngier wrote: > Our 64bit sys_reg table is about 90 entries long (so far, and the > PMU support is likely to increase this). This means that on average, > it takes 45 comparaisons to find the right entry (and actually the > full 90 if we have to search the invariant table). > > Not the most efficient thing. Specially when you think that this > table is already sorted. Switching to a binary search effectively > reduces the search to about 7 comparaisons. Slightly better! > > As an added bonus, the comparaison is done by comparing all the s/comparaison/comparison/ > fields at once, instead of one at a time. > > Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx> Reviewed-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
