Setting up benchmark result persistance

.github/workflows/go.yaml

@@ -93,7 +93,30 @@ jobs:
         run: go mod download
 
       - name: Run benchmarks
-        run: make go.bench
+        run: make go.bench | tee output.txt
+
+      - name: Download previous benchmark data
+        uses: actions/cache@v4
+        with:
+          path: ./benchmarks
+          key: ${{ runner.os }}-benchmark
+
+      - name: Store benchmarks result
+        uses: benchmark-action/github-action-benchmark@v1.20.3
+        with:
+          name: SQLite
+          tool: 'go'
+          output-file-path: output.txt
+          external-data-json-path: ./benchmarks/data.json
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          gh-pages-branch: gh-pages
+          benchmark-data-dir-path: "benchmarks"
+          alert-threshold: "150%"
+          summary-always: true
+          comment-always: true
+          fail-on-alert: true
+          fail-threshold: "400%"
+
 
   benchmarks-dqlite:
     name: Benchmark dqlite
@@ -114,6 +137,22 @@ jobs:
       - name: Run benchmarks
         run: make go.bench.dqlite
 
+      - name: Store benchmarks result
+        uses: benchmark-action/github-action-benchmark@v1.20.3
+        with:
+          name: dqlite
+          tool: 'go'
+          output-file-path: output.txt
+          external-data-json-path: ./benchmarks/data.json
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          gh-pages-branch: gh-pages
+          benchmark-data-dir-path: "benchmarks"
+          alert-threshold: "150%"
+          summary-always: true
+          comment-always: true
+          fail-on-alert: true
+          fail-threshold: "400%"
+
   build:
     name: Build k8s-dqlite
     runs-on: ubuntu-latest

test/admission_test.go

@@ -13,6 +13,19 @@ import (
 	clientv3 "go.etcd.io/etcd/client/v3"
 )
 
+func Fib(u uint) uint {
+	if u <= 1 {
+		return 1
+	}
+	return Fib(u-2) + Fib(u-1)
+}
+func BenchmarkFib20WithAuxMetric(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		var _ = Fib(20)
+	}
+	b.ReportMetric(4.0, "auxMetricUnits")
+}
+
 // TestAdmissionControl puts heavy load on kine and expects that some requests are denied
 // by the admission control.
 func TestAdmissionControl(t *testing.T) {