Added system check benchmark (#80)

Author: adamchainz

benchmarks/query_benchmarks/queryset_filter_chain/benchmark.py

@@ -12,11 +12,15 @@ def time_filter_chain(self):
         Book.objects.filter(title="Talent").filter(
             description__icontains="top performers"
         ).filter(author_name__startswith="Geoff").filter(
-            date_created__lt=datetime.datetime(year=2010, month=1, day=1)
+            date_created__lt=datetime.datetime(
+                year=2010, month=1, day=1, tzinfo=datetime.timezone.utc
+            )
         ).filter(
-            date_created__gte=datetime.date(year=2007, month=1, day=1)
+            date_created__gte=datetime.datetime(
+                year=2007, month=1, day=1, tzinfo=datetime.timezone.utc
+            )
         ).filter(
-            date_published=datetime.datetime.now()
+            date_published=datetime.datetime.now(tz=datetime.timezone.utc)
         ).filter(
             enabled=True
         )

benchmarks/system_check_benchmarks/__init__.py

@@ -0,0 +1,11 @@
+from django.core.checks import run_checks
+
+from ...utils import bench_setup
+
+
+class SystemChecks:
+    def setup(self):
+        bench_setup(migrate=True)
+
+    def time_checks(self):
+        run_checks(include_deployment_checks=True, databases=("default",))