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jon-chuang
2020-04-22 17:14:40 +08:00
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@@ -76,7 +76,7 @@ These benchmarks require the nightly Rust toolchain; to install this, run `rustu
cargo +nightly bench cargo +nightly bench
``` ```
To make use of `adcxq`, `adoxq` and `mulxq` available on most modern `x86_64` platforms (Broadwell onwards for Intel and Ryzen onwards for AMD), leading to a 30-70% speedup, run the following: Compiling with `adcxq`, `adoxq` and `mulxq` instructions can lead to a 30-70% speedup. These are available on most `x86_64` platforms (Broadwell onwards for Intel and Ryzen onwards for AMD). Run the following command:
```bash ```bash
RUSTFLAGS="--emit=asm -C target-feature=+bmi2,+adx" cargo +nightly test/build/bench --features asm RUSTFLAGS="--emit=asm -C target-feature=+bmi2,+adx" cargo +nightly test/build/bench --features asm
``` ```