We published a 5% win, but it was really closer to 10% (for amd64). We were conservative in our marketing. The arm64 register ABI (which will be in 1.18 [March]

We published a 5% win, but it was really closer to 10% (for amd64). We were conservative in our marketing. The arm64 register ABI (which will be in 1.18 [March]), is showing performance improvements of over ≥ 15. (Rob Pike saw 20% on some of his stuff.)