Reduce threadpool size

src/python/src/grpc/_adapter/_face_test_case.py

@@ -43,7 +43,7 @@ from grpc.framework.foundation import logging_pool
 
 _TIMEOUT = 3
 _MAXIMUM_TIMEOUT = 90
-_MAXIMUM_POOL_SIZE = 400
+_MAXIMUM_POOL_SIZE = 4
 
 
 class FaceTestCase(test_case.FaceTestCase, coverage.BlockingCoverage):

src/python/src/grpc/_adapter/_links_test.py

@@ -54,8 +54,8 @@ def _transform_metadata(unused_metadata):
 class RoundTripTest(unittest.TestCase):
 
   def setUp(self):
-    self.fore_link_pool = logging_pool.pool(80)
-    self.rear_link_pool = logging_pool.pool(80)
+    self.fore_link_pool = logging_pool.pool(8)
+    self.rear_link_pool = logging_pool.pool(8)
 
   def tearDown(self):
     self.rear_link_pool.shutdown(wait=True)

src/python/src/grpc/_adapter/_lonely_rear_link_test.py

@@ -43,7 +43,7 @@ _TIMEOUT = 2
 class LonelyRearLinkTest(unittest.TestCase):
 
   def setUp(self):
-    self.pool = logging_pool.pool(80)
+    self.pool = logging_pool.pool(8)
 
   def tearDown(self):
     self.pool.shutdown(wait=True)

src/python/src/grpc/framework/face/demonstration.py

@@ -34,7 +34,7 @@ from grpc.framework.base import implementations as _base_implementations
 from grpc.framework.face import implementations
 from grpc.framework.foundation import logging_pool
 
-_POOL_SIZE_LIMIT = 20
+_POOL_SIZE_LIMIT = 5
 
 _MAXIMUM_TIMEOUT = 90
 

src/python/src/grpc/framework/face/testing/base_util.py

@@ -38,7 +38,7 @@ from grpc.framework.base import in_memory
 from grpc.framework.base import interfaces  # pylint: disable=unused-import
 from grpc.framework.foundation import logging_pool
 
-_POOL_SIZE_LIMIT = 20
+_POOL_SIZE_LIMIT = 5
 
 _MAXIMUM_TIMEOUT = 90