add temporary benchmark for updateReqs

tests/test_models.py

@@ -361,3 +361,18 @@ def test_req():
     opt['tmpls'][1]['qfmt'] = "{{^Add Reverse}}{{Back}}{{/Add Reverse}}"
     mm.save(opt, templates=True)
     assert opt['req'][1] == [1, 'none', []]
+
+def test_updatereqs_performance():
+    import time
+    d = getEmptyCol()
+    mm = d.models
+    m = mm.byName("Basic")
+    for i in range(100):
+        fld = mm.newField(f"field{i}")
+        mm.addField(m, fld)
+        tmpl = mm.newTemplate(f"template{i}")
+        tmpl['qfmt'] = "{{field%s}}" % i
+        mm.addTemplate(m, tmpl)
+    t = time.time()
+    mm.save(m, templates=True)
+    print("took", (time.time()-t)*100)