Real-world performance: not enough to be measurable, certainly remotely enough to make up for the time we lose to debugging. But no-one cares about real-world

Real-world performance: not enough to be measurable, certainly remotely enough to make up for the time we lose to debugging. But no-one cares about real-world performance, people pick C and pick a C compiler because they want the thing that's fastest on artificial microbenchmarks.