We have found that the store elimination optimization originally uncovered on Skylake client is still present in Ice Lake and is roughly twice as effective in our fill benchmarks. Elimination of 96% L2 writebacks (to L3) and L3 writebacks (to RAM) was observed, compared to 50% to 60% on Skylake. We found speedups of up to 45% in the L3 region and speedups of about 25% in RAM, compared to improvements of less than 20% in Skylake.

But there’s a lot of investigation work to get there.

source: HN