run iai and criterion benches

.github/workflows/pr_benchmarks.yml

@@ -26,8 +26,7 @@ jobs:
         if: github.event.pull_request.merged == true || github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository
         run: echo "branch_name=$GITHUB_REF_NAME" >> "$GITHUB_OUTPUT"
 
-
-  benchmark_pr_with_bencher:
+  benchmark_pr_with_bencher_iai:
     needs: [target_branch, backup_branch]
     permissions:
       pull-requests: write
@@ -56,3 +55,34 @@ jobs:
           --token "${{ secrets.BENCHER_API_TOKEN }}" \
           --err \
           "cargo bench --all"
+
+  benchmark_pr_with_bencher_criterion:
+    needs: [target_branch, backup_branch]
+    permissions:
+      pull-requests: write
+    name: Continuous Benchmarking with Bencher
+    runs-on: ubuntu-latest
+    env:
+      BENCHER_PROJECT: sl-sh
+      BENCHER_TESTBED: ubuntu-latest
+      BENCHER_ADAPTER: rust_criterion
+      BRANCH: ${{ needs.target_branch.outputs.branch_name || needs.backup_branch.outputs.branch_name || github.event.pull_request.base.ref || 'main' }}
+    steps:
+      - run: sudo apt-get update
+      - run: sudo apt install -y valgrind gnuplot
+      - uses: actions/checkout@v4
+      - uses: bencherdev/bencher@main
+      - run: cargo install iai-callgrind-runner --version 0.10.2
+      - name: cargo test --no-run benches (debug mode) to check compile
+        run: cargo test --benches --no-run
+
+      - name: Track Benchmarks with Bencher
+        run: |
+          echo "Running bencher for branch ${BRANCH}."
+          bencher run \
+          --if-branch "${BRANCH}" \
+          --else-if-branch "main" \
+          --github-actions "${{ secrets.GITHUB_TOKEN }}" \
+          --token "${{ secrets.BENCHER_API_TOKEN }}" \
+          --err \
+          "cargo bench --all"