diff --git a/src/DIRAC/Core/Utilities/test/Test_Profiler.py b/src/DIRAC/Core/Utilities/test/Test_Profiler.py
index 601025c7479..375a68cf958 100644
--- a/src/DIRAC/Core/Utilities/test/Test_Profiler.py
+++ b/src/DIRAC/Core/Utilities/test/Test_Profiler.py
@@ -76,8 +76,10 @@ def test_base():
     assert resWC["Value"] >= 0
     assert resWC["Value"] >= res["Value"]
 
+    mainProcess.kill()
+    mainProcess.wait()
+
 
-@pytest.mark.flaky(reruns=10)
 def test_cpuUsage():
     mainProcess = Popen(
         [
@@ -147,6 +149,7 @@ def test_cpuUsage():
     assert resTC["Value"] >= res["Value"]
 
     # After this the main process will no-longer exist
+    mainProcess.kill()
     mainProcess.wait()
 
     res = p.cpuUsageUser()
diff --git a/src/DIRAC/tests/Utilities/ProcessesCreator_withChildren.py b/src/DIRAC/tests/Utilities/ProcessesCreator_withChildren.py
index 015480dca84..8b78db12314 100644
--- a/src/DIRAC/tests/Utilities/ProcessesCreator_withChildren.py
+++ b/src/DIRAC/tests/Utilities/ProcessesCreator_withChildren.py
@@ -26,3 +26,8 @@ def do_sum(args):
         p.daemon = False
         p.start()
         p.join()
+
+    # On fast machines, this can finish too quickly
+    # Just sleep (we've accumulated usage now)
+    # and the test can interrupt this with a kill
+    time.sleep(60)