Add codspeed

.github/workflows/test.yml

@@ -89,3 +89,43 @@ jobs:
       - name: Run examples with Miri
         run: |
           cargo miri run --example calc
+
+  benchmarks:
+    name: Benchmarks
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Rust toolchain
+        uses: dtolnay/rust-toolchain@master
+        id: rust-toolchain
+        with:
+          toolchain: stable
+
+      - name: "Setup codspeed"
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-codspeed
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-${{ hashFiles('**/Cargo.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-
+            ${{ runner.os }}-cargo-
+
+      - name: "Build benchmarks"
+        run: cargo codspeed build
+
+      - name: "Run benchmarks"
+        uses: CodSpeedHQ/action@v2
+        with:
+          run: cargo codspeed run
+          token: ${{ secrets.CODSPEED_TOKEN }}

Cargo.toml

@@ -24,7 +24,7 @@ smallvec = "1.0.0"
 
 [dev-dependencies]
 annotate-snippets = "0.11.4"
-criterion = "0.5.1"
+codspeed-criterion-compat = { version = "2.6.0", default-features = false }
 derive-new = "0.5.9"
 expect-test = "1.4.0"
 eyre = "0.6.8"

benches/incremental.rs

@@ -1,4 +1,4 @@
-use criterion::{criterion_group, criterion_main, BatchSize, Criterion};
+use codspeed_criterion_compat::{criterion_group, criterion_main, BatchSize, Criterion};
 use salsa::Setter;
 
 #[salsa::input]