I don't understand the wording:
"Our method, SILO, superoptimizes programs an expected 6.2% of our test set when compared with the gcc version 10.3 compiler's aggressive optimization level -O3."
Does that mean that the runtime is only 6.2% of the runtime after gcc optimization, or that there was a 6.2% reduction in runtime compared to gcc optimization?
Does that mean that the runtime is only 6.2% of the runtime after gcc optimization, or that there was a 6.2% reduction in runtime compared to gcc optimization?