Initial approach

Signed-off-by: Antón Casas <antoncasas@eprosima.com>

Author: 4ntn

.github/workflows/performance.yml

@@ -0,0 +1,124 @@
+name: Weekly Performance
+
+on:
+  workflow_dispatch:
+    inputs:
+      name:
+        description: "Manual trigger"
+  schedule:
+    - cron: '12 13 * * 7'
+
+permissions:
+  contents: write
+
+jobs:
+  performance:
+    name: Performance
+    runs-on: ubuntu-24.04
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+          ref: ${{ github.ref }}
+
+      - name: Install CMake and prerequisites
+        shell: bash
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential curl python3-pip valgrind
+          python3 -m pip install --upgrade pip
+          python3 -m pip install msparser matplotlib
+
+          # CMake 3.31.8
+          CMAKE_VER=3.31.8
+          curl -L "https://github.com/Kitware/CMake/releases/download/v${CMAKE_VER}/cmake-${CMAKE_VER}-linux-x86_64.tar.gz" -o cmake-${CMAKE_VER}.tgz
+          sudo tar -C /opt -xzf cmake-${CMAKE_VER}.tgz
+          echo "/opt/cmake-${CMAKE_VER}-linux-x86_64/bin" >> "$GITHUB_PATH"
+
+      - name: Run tests
+        shell: bash
+        run: |
+          ./test/memory/memory_test.sh
+
+      - name: Save results into memory
+        shell: bash
+        run: |
+          set -euxo pipefail
+          mkdir -p ci/metrics/complete_profile/runs
+
+          stamp="$(date -u +%Y%m%dT%H%M%SZ)_${GITHUB_RUN_NUMBER}_${GITHUB_SHA::8}"
+          cp build/complete_profile.csv "ci/metrics/complete_profile/runs/${stamp}.csv"
+
+          git config user.name  "github-actions"
+          git config user.email "github-actions@github.com"
+
+          BR="memory/performance" # Use this branch to store performance results
+          git fetch origin "${BR}" || true
+          git checkout -B "${BR}"
+
+          git add ci/metrics/complete_profile/runs/
+          git diff --cached --quiet || git commit -m "metrics: complete_profile run ${GITHUB_RUN_NUMBER} (${GITHUB_SHA::8})"
+          git push -f origin "${BR}"
+
+      - name: Generate plots
+        shell: bash
+        run: |
+          set -euxo pipefail
+          python3 - <<'PY'
+          import glob, os, csv, re
+          from pathlib import Path
+          import matplotlib.pyplot as plt
+
+          runs_dir = Path("ci/metrics/complete_profile/runs")
+          out_png  = Path("build/complete_profile_last30.png")
+          out_png.parent.mkdir(parents=True, exist_ok=True)
+
+          files = sorted(runs_dir.glob("*.csv"))[-30:]  # last 30 by filename (timestamp prefix)
+          if not files:
+            raise SystemExit("No historical CSVs found in ci/metrics/complete_profile/runs")
+
+          y_vals = []
+          for f in files:
+            with f.open(newline="") as fh:
+              reader = csv.DictReader(fh)
+              row = next(reader, None)
+              if row is None:
+                continue
+              # CSV values are quoted strings; convert to int safely
+              val = row.get("text")
+              if val is None:
+                continue
+              y_vals.append(int(val))
+
+          if not y_vals:
+            raise SystemExit("No numeric 'text' values found to plot")
+
+          plt.figure()
+          plt.plot(range(1, len(y_vals)+1), y_vals)  # line plot
+          plt.title("Complete Profile")
+          plt.xlabel("Run (old → new)")
+          plt.ylabel("Bytes")
+          plt.xticks([])  # keep clean
+          plt.tight_layout()
+          plt.savefig(out_png)
+          print(f"Wrote {out_png}")
+          PY
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: performance-results
+          path: |
+            build/complete_profile.csv
+            build/complete_profile_last30.png
+          if-no-files-found: warn
+
+      - name: Add summary
+        if: always()
+        shell: bash
+        run: |
+          echo "## Complete Profile (last 30 runs)" >> "$GITHUB_STEP_SUMMARY"
+          echo "" >> "$GITHUB_STEP_SUMMARY"
+          echo "![Complete Profile](./build/complete_profile_last30.png)" >> "$GITHUB_STEP_SUMMARY"