memcpy

How fast can we memcpy 256 MiB of data? Run the benchmarks:

RUSTFLAGS="-Ctarget-cpu=native" cargo bench

Results

Apple M3 Pro (2023)

LPDDR5-6400

AMD EPYC 9454P 48-Core Processor (2023)

DDR5-4800

Apple M2 Max (2023)

LPDDR5-6400

AMD Ryzen 9 7950X 16-Core Processor (2022)

DDR5-5200

Apple M2 (2022)

LPDDR5-6400

Apple M1 Pro (2021)

LPDDR5-6400

Apple M1 (2021)

LPDDR4X-4266

AMD EPYC 7713 64-Core Processor (2021)

DDR4-3200

AMD Ryzen 7 1800X Eight-Core Processor (2017)

DDR4-2133

Intel(R) Xeon(R) CPU E5-2660 v2 (2012)

DDR3-1866

May I add my results?

Yes, please!