diff --git benchexec/localexecution.py benchexec/localexecution.py
index f227a84d..1bf6e2cc 100644
--- benchexec/localexecution.py
+++ benchexec/localexecution.py
@@ -162,13 +162,12 @@ def execute_benchmark(benchmark, output_handler):
                 with unfinished_runs_lock:
                     unfinished_runs -= 1
 
-            if not containerexecutor.NATIVE_CLONE_CALLBACK_SUPPORTED:
-                logging.debug(
-                    "Using sys.setswitchinterval() workaround for #435 in container "
-                    "mode because native callback is not available."
-                )
-                py_switch_interval = sys.getswitchinterval()
-                sys.setswitchinterval(1000)
+            logging.debug(
+                "Using sys.setswitchinterval() workaround for #435 in container "
+                "mode because native callback is not available."
+            )
+            py_switch_interval = sys.getswitchinterval()
+            sys.setswitchinterval(1000)
 
             # create some workers
             for i in range(min(benchmark.num_of_threads, unfinished_runs)):
@@ -196,8 +195,7 @@ def execute_benchmark(benchmark, output_handler):
             if energy and cpu_packages:
                 energy = {pkg: energy[pkg] for pkg in energy if pkg in cpu_packages}
 
-            if not containerexecutor.NATIVE_CLONE_CALLBACK_SUPPORTED:
-                sys.setswitchinterval(py_switch_interval)
+            sys.setswitchinterval(py_switch_interval)
 
             if STOPPED_BY_INTERRUPT:
                 output_handler.set_error("interrupted", runSet)