diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index fd05d9740e8..a695a62827c 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -888,40 +888,48 @@ class ObjCLanguage(object):
         self.config.job_spec(['src/objective-c/tests/run_tests.sh'],
                               timeout_seconds=60*60,
                               shortname='objc-tests',
+                              cpu_cost=1e6,
                               environ=_FORCE_ENVIRON_FOR_WRAPPERS),
         self.config.job_spec(['src/objective-c/tests/run_plugin_tests.sh'],
                               timeout_seconds=60*60,
                               shortname='objc-plugin-tests',
+                              cpu_cost=1e6,
                               environ=_FORCE_ENVIRON_FOR_WRAPPERS),
         self.config.job_spec(['src/objective-c/tests/build_one_example.sh'],
                               timeout_seconds=10*60,
                               shortname='objc-build-example-helloworld',
+                              cpu_cost=1e6,
                               environ={'SCHEME': 'HelloWorld',
                                        'EXAMPLE_PATH': 'examples/objective-c/helloworld'}),
         self.config.job_spec(['src/objective-c/tests/build_one_example.sh'],
                               timeout_seconds=10*60,
                               shortname='objc-build-example-routeguide',
+                              cpu_cost=1e6,
                               environ={'SCHEME': 'RouteGuideClient',
                                        'EXAMPLE_PATH': 'examples/objective-c/route_guide'}),
         self.config.job_spec(['src/objective-c/tests/build_one_example.sh'],
                               timeout_seconds=10*60,
                               shortname='objc-build-example-authsample',
+                              cpu_cost=1e6,
                               environ={'SCHEME': 'AuthSample',
                                        'EXAMPLE_PATH': 'examples/objective-c/auth_sample'}),
         self.config.job_spec(['src/objective-c/tests/build_one_example.sh'],
                               timeout_seconds=10*60,
                               shortname='objc-build-example-sample',
+                              cpu_cost=1e6,
                               environ={'SCHEME': 'Sample',
                                        'EXAMPLE_PATH': 'src/objective-c/examples/Sample'}),
         self.config.job_spec(['src/objective-c/tests/build_one_example.sh'],
                               timeout_seconds=10*60,
                               shortname='objc-build-example-sample-frameworks',
+                              cpu_cost=1e6,
                               environ={'SCHEME': 'Sample',
                                        'EXAMPLE_PATH': 'src/objective-c/examples/Sample',
                                        'FRAMEWORKS': 'YES'}),
         self.config.job_spec(['src/objective-c/tests/build_one_example.sh'],
                               timeout_seconds=10*60,
                               shortname='objc-build-example-switftsample',
+                              cpu_cost=1e6,
                               environ={'SCHEME': 'SwiftSample',
                                        'EXAMPLE_PATH': 'src/objective-c/examples/SwiftSample'}),
     ]