[chore][.github] Add Go benchmarks workflow

Author: mx-psi

.github/workflows/go-benchmarks.yml

@@ -0,0 +1,58 @@
+name: CodSpeed Benchmarks
+
+on:
+  push:
+    branches:
+      - "main"
+  pull_request:
+  workflow_dispatch:
+
+env:
+  # renovate: datasource=github-releases depName=codspeed packageName=CodSpeedHQ/runner
+  CODSPEED_RUNNER_VERSION: v4.3.4
+
+jobs:
+  benchmarks:
+    name: Run benchmarks
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6.0.0
+      - name: Setup Go
+        uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6.0.0
+        with:
+          go-version: stable
+          cache: false
+      - name: Cache Go
+        id: go-cache
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        with:
+          path: |
+            ~/go/bin
+            ~/go/pkg/mod
+          key: go-cache-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('**/go.sum') }}
+
+      # The following comes from https://github.com/CodSpeedHQ/action/blob/6a8e2b/action.yml with significant modifications.
+      # Copyright (c) 2022 CodSpeed and contributors
+      # TODO: Switch to a setup-codspeed action when available, see https://github.com/CodSpeedHQ/action/issues/146
+      - name: Determine kernel version
+        id: versions
+        shell: bash
+        run: |
+          # Get kernel version for cache key
+          KERNEL_VERSION=$(uname -r)
+          echo "kernel-version=$KERNEL_VERSION" >> $GITHUB_OUTPUT
+      - name: Cache CodSpeed instruments
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        with:
+          path: ~/.cache/codspeed-action
+          key: codspeed-instruments-instrumentation-${{ runner.os }}-${{ runner.arch }}-${{steps.versions.outputs.kernel-version }}-${{ env.CODSPEED_RUNNER_VERSION }}
+          restore-keys: |
+            codspeed-instruments-instrumentation-${{ runner.os }}-${{ runner.arch }}-${{steps.versions.outputs.kernel-version }}-${{ env.CODSPEED_RUNNER_VERSION }}
+      - name: Setup codspeed
+        run: |
+          curl -fsSL https://github.com/CodSpeedHQ/runner/releases/download/${{ env.CODSPEED_RUNNER_VERSION }}/codspeed-runner-installer.sh | bash -s -- --quiet
+      - name: Run benchmarks
+        run: |
+          make for-all-target TARGET="codspeed-benchmark"
+

Makefile.Common

@@ -99,3 +99,8 @@ impi:
 .PHONY: moddownload
 moddownload:
 	$(GOCMD) mod download
+
+codspeed-benchmark:
+	if go test ./... -list=Benchmark | grep -q Benchmark; then \
+		codspeed run --mode instrumentation --setup-cache-dir=~/.cache/codspeed-action -- 'go test -bench=./...'; \
+	fi