Add Artemis stress test for detecting cache aliasing bugs. Include statistical hypothesis evaluations, fix validation data, and run reports for validation across architectures.

Signed-off-by: Robert Allan James <robert.allan.james@gmail.com>

experiments/artemis_stress/analysis/svg_to_pdf.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+"""Convert all SVGs in charts/ to PDF for LaTeX \\includegraphics.
+
+Mirrors experiments/bare_metal/analysis/svg_to_pdf.py, scoped to this
+experiment's own charts/report/figures directories.
+"""
+import subprocess
+import sys
+from pathlib import Path
+
+CHARTS = Path(__file__).parent / "charts"
+PDFS = Path(__file__).parent / "report" / "figures"
+PDFS.mkdir(parents=True, exist_ok=True)
+
+svgs = sorted(CHARTS.glob("*.svg"))
+if not svgs:
+    print("No SVGs found in", CHARTS)
+    sys.exit(1)
+
+ok = fail = 0
+for svg in svgs:
+    pdf = PDFS / svg.with_suffix(".pdf").name
+    result = subprocess.run(
+        ["rsvg-convert", "--format=pdf", "--output", str(pdf), str(svg)],
+        capture_output=True, text=True
+    )
+    if result.returncode == 0:
+        print(f"  OK  {svg.name} -> {pdf.name}")
+        ok += 1
+    else:
+        print(f"  ERR {svg.name}: {result.stderr.strip()}")
+        fail += 1
+
+print(f"\n{ok} converted, {fail} failed.")
+sys.exit(0 if fail == 0 else 1)