diff --git a/nightly-benchmark/sitecustomize.py b/nightly-benchmark/sitecustomize.py
index ecf7e0c..094db50 100644
--- a/nightly-benchmark/sitecustomize.py
+++ b/nightly-benchmark/sitecustomize.py
@@ -1,9 +1,15 @@
 import atexit
 import cProfile
+import gc
 import os
 import sys
 import uuid
 
+
+gc.disable()
+gc.set_threshold(0)
+
+
 if not os.path.basename(sys.argv[0]).startswith("gprof2dot"):
     p = cProfile.Profile()
     p.enable()