Fixing timing test runner

.gitea/workflows/Matrix-Timing.yaml

@@ -42,33 +42,39 @@ jobs:
       - name: Compare timing results
         id: check_diff
         run: |
-          # Ensure the previous version exists (from git)
           git show origin/${{ github.event.pull_request.head.ref }}:unit-tests/timing-results/matrix-timing-tests.txt > old.txt || echo "" > old.txt
           cp unit-tests/timing-results/matrix-timing-tests.txt new.txt
 
-          echo "Comparing timing results..."
+          echo "Comparing timing results for changes ≥ 0.1s (ignoring 'Timing Tests' lines)..."
 
-          CHANGED=0
           awk '
-            BEGIN { change_threshold=0.1 }
-            /^[0-9]+\.[0-9]+ s: / {
-              new_time = $1
-              label = substr($0, index($0, ":") + 2)
-              if (label_times[label]) {
-                old_time = label_times[label]
-                delta = new_time - old_time
-                if (delta < 0) delta = -delta
-                if (delta >= change_threshold) {
-                  changed = 1
-                }
-              } else {
-                changed = 1
-              }
+            BEGIN {
+              change_threshold = 0.1
+              changed = 0
             }
             FILENAME == "old.txt" && /^[0-9]+\.[0-9]+ s: / {
               label = substr($0, index($0, ":") + 2)
+              if (label != "Timing Tests") {
                 label_times[label] = $1
               }
+            }
+            FILENAME == "new.txt" && /^[0-9]+\.[0-9]+ s: / {
+              new_time = $1
+              label = substr($0, index($0, ":") + 2)
+              if (label == "Timing Tests") next
+
+              old_time = label_times[label]
+              delta = new_time - old_time
+              if (delta < 0) delta = -delta
+
+              if (old_time != "" && delta >= change_threshold) {
+                printf "⚠️  %.3f s → %.3f s: %s (Δ=%.3f s)\n", old_time, new_time, label, delta
+                changed = 1
+              } else if (old_time == "") {
+                printf "🆕 New timing entry: %.3f s: %s\n", new_time, label
+                changed = 1
+              }
+            }
             END {
               exit changed == 1 ? 0 : 1
             }