Comment on Linux Commands for DevelopersparentComments−zvrba14yIt's not that simple anymore... In modern CPUs, NOPs are discarded by the decoding units so they never occupy the exeuction units. If decoding BW is not saturated (and most often, it's not), NOPs are indeed "free".
Comments
It's not that simple anymore... In modern CPUs, NOPs are discarded by the decoding units so they never occupy the exeuction units. If decoding BW is not saturated (and most often, it's not), NOPs are indeed "free".