diff --git a/psutil/tests/test_process.py b/psutil/tests/test_process.py
index b3cf9ff54..58caf5a21 100755
--- a/psutil/tests/test_process.py
+++ b/psutil/tests/test_process.py
@@ -1059,7 +1059,7 @@ def test_num_fds(self):
     def test_num_ctx_switches(self):
         p = psutil.Process()
         before = sum(p.num_ctx_switches())
-        for _ in range(500000):
+        for _ in range(1000000):
             after = sum(p.num_ctx_switches())
             if after > before:
                 return