ci: do benchmark for solana-runtime

.github/workflows/bench.yml

@@ -0,0 +1,30 @@
+name: Rust Example
+on:
+  push:
+    branches:
+      - master
+
+permissions:
+  contents: write
+  deployments: write
+
+jobs:
+  benchmark:
+    name: Run Rust benchmark example
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Run benchmark
+        run: |
+          source ci/rust-version.sh all
+          cargo +$rust_nightly bench -p solana-runtime | tee output.txt
+
+      - name: Store benchmark result
+        uses: benchmark-action/github-action-benchmark@v1
+        with:
+          name: bench-solana-runtime
+          tool: "cargo"
+          output-file-path: output.txt
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          auto-push: true

Cargo.toml

@@ -3,6 +3,9 @@ inherits = "release"
 debug = true
 split-debuginfo = "packed"
 
+[profile.bench]
+lto = true
+
 [workspace]
 members = [
     "account-decoder",