The real important bits: "Front-end CPU stalls - The workload wastes a lot of time in CPU instruction cache misses, instruction TLB misses, and to a lesser exte

The real important bits: "Front-end CPU stalls - The workload wastes a lot of time in CPU instruction cache misses, instruction TLB misses, and to a lesser extent branch mispredictions". My educated guess is that it relocates the hot path of the text segment to better pack into the instruction cache. Cool.