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[Doc]add doc for enable SIMD need cargo nightly #2577

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Dandandan merged 1 commit into from
May 20, 2022
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[Doc]add doc for enable SIMD need cargo nightly #2577

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4 changes: 2 additions & 2 deletions benchmarks/README.md
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Expand Up @@ -47,7 +47,7 @@ The benchmark can then be run (assuming the data created from `dbgen` is in `./d
cargo run --release --bin tpch -- benchmark datafusion --iterations 3 --path ./data --format tbl --query 1 --batch-size 4096
```

You can enable the features `simd` (to use SIMD instructions) and/or `mimalloc` or `snmalloc` (to use either the mimalloc or snmalloc allocator) as features by passing them in as `--features`:
You can enable the features `simd` (to use SIMD instructions, `cargo nightly` is required.) and/or `mimalloc` or `snmalloc` (to use either the mimalloc or snmalloc allocator) as features by passing them in as `--features`:

```
cargo run --release --features "simd mimalloc" --bin tpch -- benchmark datafusion --iterations 3 --path ./data --format tbl --query 1 --batch-size 4096
Expand Down Expand Up @@ -113,7 +113,7 @@ RUST_LOG=info cargo run --release

By default the executor will bind to `0.0.0.0` and listen on port 50051.

You can add SIMD/snmalloc/LTO flags to improve speed (with longer build times):
You can add SIMD(`cargo nightly` is required)/snmalloc/LTO flags to improve speed (with longer build times):

```
RUST_LOG=info RUSTFLAGS='-C target-cpu=native -C lto -C codegen-units=1 -C embed-bitcode' cargo run --release --bin executor --features "simd snmalloc" --target x86_64-unknown-linux-gnu
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