diff --git a/BUILD b/BUILD
index dccb0e425707104649de3c40728eaf33fb5bff6e..a19631e6df608f6955bfb5a63f86e6a5a78563ba 100644
--- a/BUILD
+++ b/BUILD
@@ -665,6 +665,7 @@ cc_library(
     "src/cpp/proto/proto_utils.cc",
     "src/cpp/server/async_generic_service.cc",
     "src/cpp/server/create_default_thread_pool.cc",
+    "src/cpp/server/dynamic_thread_pool.cc",
     "src/cpp/server/fixed_size_thread_pool.cc",
     "src/cpp/server/insecure_server_credentials.cc",
     "src/cpp/server/server.cc",
@@ -690,6 +691,7 @@ cc_library(
     "include/grpc++/config_protobuf.h",
     "include/grpc++/create_channel.h",
     "include/grpc++/credentials.h",
+    "include/grpc++/dynamic_thread_pool.h",
     "include/grpc++/fixed_size_thread_pool.h",
     "include/grpc++/generic_stub.h",
     "include/grpc++/impl/call.h",
@@ -750,6 +752,7 @@ cc_library(
     "src/cpp/proto/proto_utils.cc",
     "src/cpp/server/async_generic_service.cc",
     "src/cpp/server/create_default_thread_pool.cc",
+    "src/cpp/server/dynamic_thread_pool.cc",
     "src/cpp/server/fixed_size_thread_pool.cc",
     "src/cpp/server/insecure_server_credentials.cc",
     "src/cpp/server/server.cc",
@@ -775,6 +778,7 @@ cc_library(
     "include/grpc++/config_protobuf.h",
     "include/grpc++/create_channel.h",
     "include/grpc++/credentials.h",
+    "include/grpc++/dynamic_thread_pool.h",
     "include/grpc++/fixed_size_thread_pool.h",
     "include/grpc++/generic_stub.h",
     "include/grpc++/impl/call.h",
diff --git a/Makefile b/Makefile
index 26cbfed8b260402a191f3d42ba97e34d4d77da85..996fcfa1fc4aaa23fb97586223d315f331db400f 100644
--- a/Makefile
+++ b/Makefile
@@ -851,6 +851,7 @@ credentials_test: $(BINDIR)/$(CONFIG)/credentials_test
 cxx_byte_buffer_test: $(BINDIR)/$(CONFIG)/cxx_byte_buffer_test
 cxx_slice_test: $(BINDIR)/$(CONFIG)/cxx_slice_test
 cxx_time_test: $(BINDIR)/$(CONFIG)/cxx_time_test
+dynamic_thread_pool_test: $(BINDIR)/$(CONFIG)/dynamic_thread_pool_test
 end2end_test: $(BINDIR)/$(CONFIG)/end2end_test
 fixed_size_thread_pool_test: $(BINDIR)/$(CONFIG)/fixed_size_thread_pool_test
 generic_end2end_test: $(BINDIR)/$(CONFIG)/generic_end2end_test
@@ -1532,7 +1533,7 @@ buildtests: buildtests_c buildtests_cxx
 
 buildtests_c: privatelibs_c $(BINDIR)/$(CONFIG)/alarm_heap_test $(BINDIR)/$(CONFIG)/alarm_list_test $(BINDIR)/$(CONFIG)/alarm_test $(BINDIR)/$(CONFIG)/alpn_test $(BINDIR)/$(CONFIG)/bin_encoder_test $(BINDIR)/$(CONFIG)/chttp2_status_conversion_test $(BINDIR)/$(CONFIG)/chttp2_stream_encoder_test $(BINDIR)/$(CONFIG)/chttp2_stream_map_test $(BINDIR)/$(CONFIG)/dualstack_socket_test $(BINDIR)/$(CONFIG)/fd_conservation_posix_test $(BINDIR)/$(CONFIG)/fd_posix_test $(BINDIR)/$(CONFIG)/fling_client $(BINDIR)/$(CONFIG)/fling_server $(BINDIR)/$(CONFIG)/fling_stream_test $(BINDIR)/$(CONFIG)/fling_test $(BINDIR)/$(CONFIG)/gpr_cancellable_test $(BINDIR)/$(CONFIG)/gpr_cmdline_test $(BINDIR)/$(CONFIG)/gpr_env_test $(BINDIR)/$(CONFIG)/gpr_file_test $(BINDIR)/$(CONFIG)/gpr_histogram_test $(BINDIR)/$(CONFIG)/gpr_host_port_test $(BINDIR)/$(CONFIG)/gpr_log_test $(BINDIR)/$(CONFIG)/gpr_slice_buffer_test $(BINDIR)/$(CONFIG)/gpr_slice_test $(BINDIR)/$(CONFIG)/gpr_stack_lockfree_test $(BINDIR)/$(CONFIG)/gpr_string_test $(BINDIR)/$(CONFIG)/gpr_sync_test $(BINDIR)/$(CONFIG)/gpr_thd_test $(BINDIR)/$(CONFIG)/gpr_time_test $(BINDIR)/$(CONFIG)/gpr_tls_test $(BINDIR)/$(CONFIG)/gpr_useful_test $(BINDIR)/$(CONFIG)/grpc_auth_context_test $(BINDIR)/$(CONFIG)/grpc_base64_test $(BINDIR)/$(CONFIG)/grpc_byte_buffer_reader_test $(BINDIR)/$(CONFIG)/grpc_channel_stack_test $(BINDIR)/$(CONFIG)/grpc_completion_queue_test $(BINDIR)/$(CONFIG)/grpc_credentials_test $(BINDIR)/$(CONFIG)/grpc_json_token_test $(BINDIR)/$(CONFIG)/grpc_jwt_verifier_test $(BINDIR)/$(CONFIG)/grpc_security_connector_test $(BINDIR)/$(CONFIG)/grpc_stream_op_test $(BINDIR)/$(CONFIG)/hpack_parser_test $(BINDIR)/$(CONFIG)/hpack_table_test $(BINDIR)/$(CONFIG)/httpcli_format_request_test $(BINDIR)/$(CONFIG)/httpcli_parser_test $(BINDIR)/$(CONFIG)/httpcli_test $(BINDIR)/$(CONFIG)/json_rewrite $(BINDIR)/$(CONFIG)/json_rewrite_test $(BINDIR)/$(CONFIG)/json_test $(BINDIR)/$(CONFIG)/lame_client_test $(BINDIR)/$(CONFIG)/message_compress_test $(BINDIR)/$(CONFIG)/multi_init_test $(BINDIR)/$(CONFIG)/multiple_server_queues_test $(BINDIR)/$(CONFIG)/murmur_hash_test $(BINDIR)/$(CONFIG)/no_server_test $(BINDIR)/$(CONFIG)/poll_kick_posix_test $(BINDIR)/$(CONFIG)/resolve_address_test $(BINDIR)/$(CONFIG)/secure_endpoint_test $(BINDIR)/$(CONFIG)/sockaddr_utils_test $(BINDIR)/$(CONFIG)/tcp_client_posix_test $(BINDIR)/$(CONFIG)/tcp_posix_test $(BINDIR)/$(CONFIG)/tcp_server_posix_test $(BINDIR)/$(CONFIG)/time_averaged_stats_test $(BINDIR)/$(CONFIG)/timeout_encoding_test $(BINDIR)/$(CONFIG)/timers_test $(BINDIR)/$(CONFIG)/transport_metadata_test $(BINDIR)/$(CONFIG)/transport_security_test $(BINDIR)/$(CONFIG)/uri_parser_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_max_message_length_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_no_op_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_registered_call_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_payload_and_call_creds_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_trailing_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_with_compressed_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_with_flags_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_server_finishes_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_simple_request_with_high_initial_sequence_number_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_max_message_length_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_no_op_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_registered_call_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_payload_and_call_creds_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_trailing_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_with_compressed_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_with_flags_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_server_finishes_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_simple_request_with_high_initial_sequence_number_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_max_message_length_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_no_op_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_registered_call_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_request_response_with_payload_and_call_creds_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_request_response_with_trailing_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_request_with_compressed_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_request_with_flags_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_server_finishes_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_compression_simple_request_with_high_initial_sequence_number_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_max_message_length_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_no_op_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_registered_call_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_request_response_with_payload_and_call_creds_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_request_response_with_trailing_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_request_with_compressed_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_request_with_flags_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_server_finishes_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_simple_request_with_high_initial_sequence_number_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_max_message_length_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_no_op_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_registered_call_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_response_with_payload_and_call_creds_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_response_with_trailing_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_with_compressed_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_with_flags_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_server_finishes_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_simple_request_with_high_initial_sequence_number_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_max_message_length_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_no_op_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_registered_call_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_payload_and_call_creds_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_trailing_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_compressed_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_flags_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_server_finishes_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_request_with_high_initial_sequence_number_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_bad_hostname_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_max_message_length_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_no_op_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_registered_call_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_request_response_with_payload_and_call_creds_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_request_response_with_trailing_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_request_with_compressed_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_request_with_flags_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_with_poll_request_with_payload_test 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$(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_simple_delayed_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_simple_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_posix_simple_request_with_high_initial_sequence_number_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_bad_hostname_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_cancel_after_accept_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_cancel_after_accept_and_writes_closed_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_cancel_after_invoke_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_cancel_before_invoke_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_cancel_in_a_vacuum_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_census_simple_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_disappearing_server_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_early_server_shutdown_finishes_inflight_calls_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_early_server_shutdown_finishes_tags_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_empty_batch_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_graceful_server_shutdown_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_invoke_large_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_max_concurrent_streams_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_max_message_length_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_no_op_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_ping_pong_streaming_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_registered_call_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_response_with_binary_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_response_with_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_response_with_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_response_with_trailing_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_with_compressed_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_with_flags_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_with_large_metadata_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_request_with_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_server_finishes_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_simple_delayed_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_simple_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_with_poll_simple_request_with_high_initial_sequence_number_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_bad_hostname_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_accept_and_writes_closed_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_after_invoke_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_before_invoke_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_cancel_in_a_vacuum_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_census_simple_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_disappearing_server_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_early_server_shutdown_finishes_inflight_calls_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_early_server_shutdown_finishes_tags_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_empty_batch_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_graceful_server_shutdown_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_invoke_large_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_max_concurrent_streams_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_max_message_length_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_no_op_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_ping_pong_streaming_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_registered_call_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_binary_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_response_with_trailing_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_compressed_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_flags_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_large_metadata_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_request_with_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_server_finishes_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_delayed_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_simple_request_with_high_initial_sequence_number_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_bad_hostname_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_and_writes_closed_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_invoke_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_before_invoke_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_in_a_vacuum_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_census_simple_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_disappearing_server_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_inflight_calls_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_tags_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_empty_batch_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_graceful_server_shutdown_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_invoke_large_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_max_concurrent_streams_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_max_message_length_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_no_op_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_ping_pong_streaming_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_registered_call_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_binary_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_trailing_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_compressed_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_flags_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_large_metadata_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_server_finishes_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_delayed_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_request_with_high_initial_sequence_number_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_bad_hostname_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_cancel_after_accept_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_cancel_after_accept_and_writes_closed_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_cancel_after_invoke_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_cancel_before_invoke_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_cancel_in_a_vacuum_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_census_simple_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_disappearing_server_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_early_server_shutdown_finishes_inflight_calls_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_early_server_shutdown_finishes_tags_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_empty_batch_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_graceful_server_shutdown_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_invoke_large_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_max_concurrent_streams_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_max_message_length_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_no_op_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_ping_pong_streaming_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_registered_call_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_request_response_with_binary_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_request_response_with_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_request_response_with_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_request_response_with_trailing_metadata_and_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_request_with_compressed_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_request_with_flags_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_request_with_large_metadata_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_request_with_payload_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_server_finishes_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_simple_delayed_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_simple_request_unsecure_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_with_grpc_trace_simple_request_with_high_initial_sequence_number_unsecure_test $(BINDIR)/$(CONFIG)/connection_prefix_bad_client_test $(BINDIR)/$(CONFIG)/initial_settings_frame_bad_client_test
 
-buildtests_cxx: privatelibs_cxx $(BINDIR)/$(CONFIG)/async_end2end_test $(BINDIR)/$(CONFIG)/async_streaming_ping_pong_test $(BINDIR)/$(CONFIG)/async_unary_ping_pong_test $(BINDIR)/$(CONFIG)/auth_property_iterator_test $(BINDIR)/$(CONFIG)/channel_arguments_test $(BINDIR)/$(CONFIG)/cli_call_test $(BINDIR)/$(CONFIG)/client_crash_test $(BINDIR)/$(CONFIG)/client_crash_test_server $(BINDIR)/$(CONFIG)/credentials_test $(BINDIR)/$(CONFIG)/cxx_byte_buffer_test $(BINDIR)/$(CONFIG)/cxx_slice_test $(BINDIR)/$(CONFIG)/cxx_time_test $(BINDIR)/$(CONFIG)/end2end_test $(BINDIR)/$(CONFIG)/fixed_size_thread_pool_test $(BINDIR)/$(CONFIG)/generic_end2end_test $(BINDIR)/$(CONFIG)/grpc_cli $(BINDIR)/$(CONFIG)/interop_client $(BINDIR)/$(CONFIG)/interop_server $(BINDIR)/$(CONFIG)/interop_test $(BINDIR)/$(CONFIG)/mock_test $(BINDIR)/$(CONFIG)/qps_interarrival_test $(BINDIR)/$(CONFIG)/qps_openloop_test $(BINDIR)/$(CONFIG)/qps_test $(BINDIR)/$(CONFIG)/secure_auth_context_test $(BINDIR)/$(CONFIG)/server_crash_test $(BINDIR)/$(CONFIG)/server_crash_test_client $(BINDIR)/$(CONFIG)/status_test $(BINDIR)/$(CONFIG)/sync_streaming_ping_pong_test $(BINDIR)/$(CONFIG)/sync_unary_ping_pong_test $(BINDIR)/$(CONFIG)/thread_stress_test
+buildtests_cxx: privatelibs_cxx $(BINDIR)/$(CONFIG)/async_end2end_test $(BINDIR)/$(CONFIG)/async_streaming_ping_pong_test $(BINDIR)/$(CONFIG)/async_unary_ping_pong_test $(BINDIR)/$(CONFIG)/auth_property_iterator_test $(BINDIR)/$(CONFIG)/channel_arguments_test $(BINDIR)/$(CONFIG)/cli_call_test $(BINDIR)/$(CONFIG)/client_crash_test $(BINDIR)/$(CONFIG)/client_crash_test_server $(BINDIR)/$(CONFIG)/credentials_test $(BINDIR)/$(CONFIG)/cxx_byte_buffer_test $(BINDIR)/$(CONFIG)/cxx_slice_test $(BINDIR)/$(CONFIG)/cxx_time_test $(BINDIR)/$(CONFIG)/dynamic_thread_pool_test $(BINDIR)/$(CONFIG)/end2end_test $(BINDIR)/$(CONFIG)/fixed_size_thread_pool_test $(BINDIR)/$(CONFIG)/generic_end2end_test $(BINDIR)/$(CONFIG)/grpc_cli $(BINDIR)/$(CONFIG)/interop_client $(BINDIR)/$(CONFIG)/interop_server $(BINDIR)/$(CONFIG)/interop_test $(BINDIR)/$(CONFIG)/mock_test $(BINDIR)/$(CONFIG)/qps_interarrival_test $(BINDIR)/$(CONFIG)/qps_openloop_test $(BINDIR)/$(CONFIG)/qps_test $(BINDIR)/$(CONFIG)/secure_auth_context_test $(BINDIR)/$(CONFIG)/server_crash_test $(BINDIR)/$(CONFIG)/server_crash_test_client $(BINDIR)/$(CONFIG)/status_test $(BINDIR)/$(CONFIG)/sync_streaming_ping_pong_test $(BINDIR)/$(CONFIG)/sync_unary_ping_pong_test $(BINDIR)/$(CONFIG)/thread_stress_test
 
 test: test_c test_cxx
 
@@ -2803,6 +2804,8 @@ test_cxx: buildtests_cxx
 	$(Q) $(BINDIR)/$(CONFIG)/cxx_slice_test || ( echo test cxx_slice_test failed ; exit 1 )
 	$(E) "[RUN]     Testing cxx_time_test"
 	$(Q) $(BINDIR)/$(CONFIG)/cxx_time_test || ( echo test cxx_time_test failed ; exit 1 )
+	$(E) "[RUN]     Testing dynamic_thread_pool_test"
+	$(Q) $(BINDIR)/$(CONFIG)/dynamic_thread_pool_test || ( echo test dynamic_thread_pool_test failed ; exit 1 )
 	$(E) "[RUN]     Testing end2end_test"
 	$(Q) $(BINDIR)/$(CONFIG)/end2end_test || ( echo test end2end_test failed ; exit 1 )
 	$(E) "[RUN]     Testing fixed_size_thread_pool_test"
@@ -3943,6 +3946,7 @@ LIBGRPC++_SRC = \
     src/cpp/proto/proto_utils.cc \
     src/cpp/server/async_generic_service.cc \
     src/cpp/server/create_default_thread_pool.cc \
+    src/cpp/server/dynamic_thread_pool.cc \
     src/cpp/server/fixed_size_thread_pool.cc \
     src/cpp/server/insecure_server_credentials.cc \
     src/cpp/server/server.cc \
@@ -3968,6 +3972,7 @@ PUBLIC_HEADERS_CXX += \
     include/grpc++/config_protobuf.h \
     include/grpc++/create_channel.h \
     include/grpc++/credentials.h \
+    include/grpc++/dynamic_thread_pool.h \
     include/grpc++/fixed_size_thread_pool.h \
     include/grpc++/generic_stub.h \
     include/grpc++/impl/call.h \
@@ -4184,6 +4189,7 @@ LIBGRPC++_UNSECURE_SRC = \
     src/cpp/proto/proto_utils.cc \
     src/cpp/server/async_generic_service.cc \
     src/cpp/server/create_default_thread_pool.cc \
+    src/cpp/server/dynamic_thread_pool.cc \
     src/cpp/server/fixed_size_thread_pool.cc \
     src/cpp/server/insecure_server_credentials.cc \
     src/cpp/server/server.cc \
@@ -4209,6 +4215,7 @@ PUBLIC_HEADERS_CXX += \
     include/grpc++/config_protobuf.h \
     include/grpc++/create_channel.h \
     include/grpc++/credentials.h \
+    include/grpc++/dynamic_thread_pool.h \
     include/grpc++/fixed_size_thread_pool.h \
     include/grpc++/generic_stub.h \
     include/grpc++/impl/call.h \
@@ -8447,6 +8454,46 @@ endif
 endif
 
 
+DYNAMIC_THREAD_POOL_TEST_SRC = \
+    test/cpp/server/dynamic_thread_pool_test.cc \
+
+DYNAMIC_THREAD_POOL_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(DYNAMIC_THREAD_POOL_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/dynamic_thread_pool_test: openssl_dep_error
+
+else
+
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build the protoc plugins or protobuf-enabled targets if you don't have protobuf 3.0.0+.
+
+$(BINDIR)/$(CONFIG)/dynamic_thread_pool_test: protobuf_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/dynamic_thread_pool_test: $(PROTOBUF_DEP) $(DYNAMIC_THREAD_POOL_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LDXX) $(LDFLAGS) $(DYNAMIC_THREAD_POOL_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) $(GTEST_LIB) -o $(BINDIR)/$(CONFIG)/dynamic_thread_pool_test
+
+endif
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/cpp/server/dynamic_thread_pool_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+deps_dynamic_thread_pool_test: $(DYNAMIC_THREAD_POOL_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(DYNAMIC_THREAD_POOL_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 END2END_TEST_SRC = \
     test/cpp/end2end/end2end_test.cc \
 
diff --git a/build.json b/build.json
index da4c9cfc356bba2abaf5de666fc7ed7525147e4b..dd633070ff9f2d6d537fccc5b23fba253eb60642 100644
--- a/build.json
+++ b/build.json
@@ -43,6 +43,7 @@
         "include/grpc++/config_protobuf.h",
         "include/grpc++/create_channel.h",
         "include/grpc++/credentials.h",
+        "include/grpc++/dynamic_thread_pool.h",
         "include/grpc++/fixed_size_thread_pool.h",
         "include/grpc++/generic_stub.h",
         "include/grpc++/impl/call.h",
@@ -90,6 +91,7 @@
         "src/cpp/proto/proto_utils.cc",
         "src/cpp/server/async_generic_service.cc",
         "src/cpp/server/create_default_thread_pool.cc",
+        "src/cpp/server/dynamic_thread_pool.cc",
         "src/cpp/server/fixed_size_thread_pool.cc",
         "src/cpp/server/insecure_server_credentials.cc",
         "src/cpp/server/server.cc",
@@ -2044,6 +2046,21 @@
         "gpr"
       ]
     },
+    {
+      "name": "dynamic_thread_pool_test",
+      "build": "test",
+      "language": "c++",
+      "src": [
+        "test/cpp/server/dynamic_thread_pool_test.cc"
+      ],
+      "deps": [
+        "grpc_test_util",
+        "grpc++",
+        "grpc",
+        "gpr_test_util",
+        "gpr"
+      ]
+    },
     {
       "name": "end2end_test",
       "build": "test",
diff --git a/include/grpc++/dynamic_thread_pool.h b/include/grpc++/dynamic_thread_pool.h
new file mode 100644
index 0000000000000000000000000000000000000000..bc4e2d4d749da309e9e3c3888419bb1e6d23d492
--- /dev/null
+++ b/include/grpc++/dynamic_thread_pool.h
@@ -0,0 +1,81 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPCXX_DYNAMIC_THREAD_POOL_H
+#define GRPCXX_DYNAMIC_THREAD_POOL_H
+
+#include <grpc++/config.h>
+
+#include <grpc++/impl/sync.h>
+#include <grpc++/impl/thd.h>
+#include <grpc++/thread_pool_interface.h>
+
+#include <list>
+#include <queue>
+
+namespace grpc {
+
+class DynamicThreadPool GRPC_FINAL : public ThreadPoolInterface {
+ public:
+  explicit DynamicThreadPool(int reserve_threads);
+  ~DynamicThreadPool();
+
+  void Add(const std::function<void()>& callback) GRPC_OVERRIDE;
+
+ private:
+  class DynamicThread {
+  public:
+    DynamicThread(DynamicThreadPool *pool);
+    ~DynamicThread();
+  private:
+    DynamicThreadPool *pool_;
+    std::unique_ptr<grpc::thread> thd_;
+    void ThreadFunc();
+  };
+  grpc::mutex mu_;
+  grpc::condition_variable cv_;
+  grpc::condition_variable shutdown_cv_;
+  bool shutdown_;
+  std::queue<std::function<void()>> callbacks_;
+  int reserve_threads_;
+  int nthreads_;
+  int threads_waiting_;
+  std::list<DynamicThread*> dead_threads_;
+
+  void ThreadFunc();
+  static void ReapThreads(std::list<DynamicThread*>* tlist);
+};
+
+}  // namespace grpc
+
+#endif  // GRPCXX_DYNAMIC_THREAD_POOL_H
diff --git a/src/cpp/server/create_default_thread_pool.cc b/src/cpp/server/create_default_thread_pool.cc
index cc182f59f4e36d3555f1021765e036110d93b6cb..81c84474d838b5fec9863bcfef7344c69472c092 100644
--- a/src/cpp/server/create_default_thread_pool.cc
+++ b/src/cpp/server/create_default_thread_pool.cc
@@ -32,7 +32,7 @@
  */
 
 #include <grpc/support/cpu.h>
-#include <grpc++/fixed_size_thread_pool.h>
+#include <grpc++/dynamic_thread_pool.h>
 
 #ifndef GRPC_CUSTOM_DEFAULT_THREAD_POOL
 
@@ -41,7 +41,7 @@ namespace grpc {
 ThreadPoolInterface* CreateDefaultThreadPool() {
    int cores = gpr_cpu_num_cores();
    if (!cores) cores = 4;
-   return new FixedSizeThreadPool(cores);
+   return new DynamicThreadPool(cores);
 }
 
 }  // namespace grpc
diff --git a/src/cpp/server/dynamic_thread_pool.cc b/src/cpp/server/dynamic_thread_pool.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f58d0420dfb026ec641766f59e2dddef621c3876
--- /dev/null
+++ b/src/cpp/server/dynamic_thread_pool.cc
@@ -0,0 +1,131 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <grpc++/impl/sync.h>
+#include <grpc++/impl/thd.h>
+#include <grpc++/dynamic_thread_pool.h>
+
+namespace grpc {
+DynamicThreadPool::DynamicThread::DynamicThread(DynamicThreadPool *pool):
+  pool_(pool),
+  thd_(new grpc::thread(&DynamicThreadPool::DynamicThread::ThreadFunc, this)) {
+}
+DynamicThreadPool::DynamicThread::~DynamicThread() {
+  thd_->join();
+  thd_.reset();
+}
+
+void DynamicThreadPool::DynamicThread::ThreadFunc() {
+  pool_->ThreadFunc();
+  // Now that we have killed ourselves, we should reduce the thread count
+  grpc::unique_lock<grpc::mutex> lock(pool_->mu_);
+  pool_->nthreads_--;
+  // Move ourselves to dead list
+  pool_->dead_threads_.push_back(this);
+
+  if ((pool_->shutdown_) && (pool_->nthreads_ == 0)) {
+    pool_->shutdown_cv_.notify_one();
+  }
+}
+  
+void DynamicThreadPool::ThreadFunc() {
+  for (;;) {
+    // Wait until work is available or we are shutting down.
+    grpc::unique_lock<grpc::mutex> lock(mu_);
+    if (!shutdown_ && callbacks_.empty()) {
+      // If there are too many threads waiting, then quit this thread
+      if (threads_waiting_ >= reserve_threads_) {
+	break;
+      }
+      threads_waiting_++;
+      cv_.wait(lock);
+      threads_waiting_--;
+    }
+    // Drain callbacks before considering shutdown to ensure all work
+    // gets completed.
+    if (!callbacks_.empty()) {
+      auto cb = callbacks_.front();
+      callbacks_.pop();
+      lock.unlock();
+      cb();
+    } else if (shutdown_) {
+      break;
+    }
+  }
+}
+
+DynamicThreadPool::DynamicThreadPool(int reserve_threads) :
+  shutdown_(false), reserve_threads_(reserve_threads), nthreads_(0),
+  threads_waiting_(0) {
+  for (int i = 0; i < reserve_threads_; i++) {
+    grpc::lock_guard<grpc::mutex> lock(mu_);
+    nthreads_++;
+    new DynamicThread(this);
+  }
+}
+
+void DynamicThreadPool::ReapThreads(std::list<DynamicThread*>* tlist) {
+  for (auto t = tlist->begin(); t != tlist->end(); t = tlist->erase(t)) {
+    delete *t;    
+  }
+}
+  
+DynamicThreadPool::~DynamicThreadPool() {
+  grpc::unique_lock<grpc::mutex> lock(mu_);
+  shutdown_ = true;
+  cv_.notify_all();
+  while (nthreads_ != 0) {
+    shutdown_cv_.wait(lock);
+  }
+  ReapThreads(&dead_threads_);
+}
+
+void DynamicThreadPool::Add(const std::function<void()>& callback) {
+  grpc::lock_guard<grpc::mutex> lock(mu_);
+  // Add works to the callbacks list
+  callbacks_.push(callback);
+  // Increase pool size or notify as needed
+  if (threads_waiting_ == 0) {
+    // Kick off a new thread
+    nthreads_++;
+    new DynamicThread(this);
+  } else {
+    cv_.notify_one();
+  }
+  // Also use this chance to harvest dead threads
+  if (!dead_threads_.empty()) {
+    ReapThreads(&dead_threads_);
+  }
+}
+
+}  // namespace grpc
diff --git a/test/cpp/end2end/end2end_test.cc b/test/cpp/end2end/end2end_test.cc
index 3ad67b6b30b5eef99e452abb9b1eb4398e99315f..d7a52bf27488efefd69bb4620b89e125635b6826 100644
--- a/test/cpp/end2end/end2end_test.cc
+++ b/test/cpp/end2end/end2end_test.cc
@@ -45,7 +45,7 @@
 #include <grpc++/client_context.h>
 #include <grpc++/create_channel.h>
 #include <grpc++/credentials.h>
-#include <grpc++/fixed_size_thread_pool.h>
+#include <grpc++/dynamic_thread_pool.h>
 #include <grpc++/server.h>
 #include <grpc++/server_builder.h>
 #include <grpc++/server_context.h>
@@ -275,7 +275,7 @@ class End2endTest : public ::testing::Test {
   TestServiceImpl service_;
   TestServiceImpl special_service_;
   TestServiceImplDupPkg dup_pkg_service_;
-  FixedSizeThreadPool thread_pool_;
+  DynamicThreadPool thread_pool_;
 };
 
 static void SendRpc(grpc::cpp::test::util::TestService::Stub* stub,
diff --git a/test/cpp/end2end/mock_test.cc b/test/cpp/end2end/mock_test.cc
index 74b40d54d82fa2c4f9bc753f5ef5902fb9e1eeef..32130e24e94d0acb82dca7b9590502fc791fa81f 100644
--- a/test/cpp/end2end/mock_test.cc
+++ b/test/cpp/end2end/mock_test.cc
@@ -42,7 +42,7 @@
 #include <grpc++/client_context.h>
 #include <grpc++/create_channel.h>
 #include <grpc++/credentials.h>
-#include <grpc++/fixed_size_thread_pool.h>
+#include <grpc++/dynamic_thread_pool.h>
 #include <grpc++/server.h>
 #include <grpc++/server_builder.h>
 #include <grpc++/server_context.h>
@@ -260,7 +260,7 @@ class MockTest : public ::testing::Test {
   std::unique_ptr<Server> server_;
   std::ostringstream server_address_;
   TestServiceImpl service_;
-  FixedSizeThreadPool thread_pool_;
+  DynamicThreadPool thread_pool_;
 };
 
 // Do one real rpc and one mocked one
diff --git a/test/cpp/end2end/thread_stress_test.cc b/test/cpp/end2end/thread_stress_test.cc
index e47139641b4307bbf29ec6ff827ffb2cb9ab721e..ff9c945c7c33ea7c5ac093e5700ee716989833ac 100644
--- a/test/cpp/end2end/thread_stress_test.cc
+++ b/test/cpp/end2end/thread_stress_test.cc
@@ -43,7 +43,7 @@
 #include <grpc++/client_context.h>
 #include <grpc++/create_channel.h>
 #include <grpc++/credentials.h>
-#include <grpc++/fixed_size_thread_pool.h>
+#include <grpc++/dynamic_thread_pool.h>
 #include <grpc++/server.h>
 #include <grpc++/server_builder.h>
 #include <grpc++/server_context.h>
@@ -208,7 +208,7 @@ class End2endTest : public ::testing::Test {
   const int kMaxMessageSize_;
   TestServiceImpl service_;
   TestServiceImplDupPkg dup_pkg_service_;
-  FixedSizeThreadPool thread_pool_;
+  DynamicThreadPool thread_pool_;
 };
 
 static void SendRpc(grpc::cpp::test::util::TestService::Stub* stub,
diff --git a/test/cpp/qps/server_async.cc b/test/cpp/qps/server_async.cc
index 846f8f31b0d3f40b54d1a212322e937c63fe2f01..33b6fa55c387bbc599c82469848004771b9cb2e5 100644
--- a/test/cpp/qps/server_async.cc
+++ b/test/cpp/qps/server_async.cc
@@ -45,7 +45,6 @@
 #include <grpc/support/host_port.h>
 #include <grpc++/async_unary_call.h>
 #include <grpc++/config.h>
-#include <grpc++/fixed_size_thread_pool.h>
 #include <grpc++/server.h>
 #include <grpc++/server_builder.h>
 #include <grpc++/server_context.h>
diff --git a/test/cpp/qps/server_sync.cc b/test/cpp/qps/server_sync.cc
index d90ff2212bc109d8957c5bf9b2e20070971b5909..4c3c9cb497ff87358f1e703c83c938d56611bfe3 100644
--- a/test/cpp/qps/server_sync.cc
+++ b/test/cpp/qps/server_sync.cc
@@ -40,6 +40,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc++/config.h>
+#include <grpc++/dynamic_thread_pool.h>
 #include <grpc++/fixed_size_thread_pool.h>
 #include <grpc++/server.h>
 #include <grpc++/server_builder.h>
@@ -92,7 +93,13 @@ class TestServiceImpl GRPC_FINAL : public TestService::Service {
 class SynchronousServer GRPC_FINAL : public grpc::testing::Server {
  public:
   SynchronousServer(const ServerConfig& config, int port)
-      : thread_pool_(config.threads()), impl_(MakeImpl(port)) {}
+      : thread_pool_(), impl_(MakeImpl(port)) {
+    if (config.threads() > 0) {
+      thread_pool_.reset(new FixedSizeThreadPool(config.threads()));
+    } else {
+      thread_pool_.reset(new DynamicThreadPool(-config.threads()));
+    }
+  }
 
  private:
   std::unique_ptr<grpc::Server> MakeImpl(int port) {
@@ -105,13 +112,13 @@ class SynchronousServer GRPC_FINAL : public grpc::testing::Server {
 
     builder.RegisterService(&service_);
 
-    builder.SetThreadPool(&thread_pool_);
+    builder.SetThreadPool(thread_pool_.get());
 
     return builder.BuildAndStart();
   }
 
   TestServiceImpl service_;
-  FixedSizeThreadPool thread_pool_;
+  std::unique_ptr<ThreadPoolInterface> thread_pool_;
   std::unique_ptr<grpc::Server> impl_;
 };
 
diff --git a/test/cpp/server/dynamic_thread_pool_test.cc b/test/cpp/server/dynamic_thread_pool_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..63b603b8f7bf7321bc19ae2abea902247f015f88
--- /dev/null
+++ b/test/cpp/server/dynamic_thread_pool_test.cc
@@ -0,0 +1,77 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <condition_variable>
+#include <functional>
+#include <mutex>
+
+#include <grpc++/dynamic_thread_pool.h>
+#include <gtest/gtest.h>
+
+namespace grpc {
+
+class DynamicThreadPoolTest : public ::testing::Test {
+ public:
+  DynamicThreadPoolTest() : thread_pool_(0) {}
+
+ protected:
+  DynamicThreadPool thread_pool_;
+};
+
+void Callback(std::mutex* mu, std::condition_variable* cv, bool* done) {
+  std::unique_lock<std::mutex> lock(*mu);
+  *done = true;
+  cv->notify_all();
+}
+
+TEST_F(DynamicThreadPoolTest, Add) {
+  std::mutex mu;
+  std::condition_variable cv;
+  bool done = false;
+  std::function<void()> callback = std::bind(Callback, &mu, &cv, &done);
+  thread_pool_.Add(callback);
+
+  // Wait for the callback to finish.
+  std::unique_lock<std::mutex> lock(mu);
+  while (!done) {
+    cv.wait(lock);
+  }
+}
+
+}  // namespace grpc
+
+int main(int argc, char** argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  int result = RUN_ALL_TESTS();
+  return result;
+}
diff --git a/test/cpp/util/cli_call_test.cc b/test/cpp/util/cli_call_test.cc
index 00bb821ae67ef5c0100ea341b810e792ddc0e1be..848a3aee577100010f10ddedea0f8455d94a231a 100644
--- a/test/cpp/util/cli_call_test.cc
+++ b/test/cpp/util/cli_call_test.cc
@@ -39,7 +39,7 @@
 #include <grpc++/client_context.h>
 #include <grpc++/create_channel.h>
 #include <grpc++/credentials.h>
-#include <grpc++/fixed_size_thread_pool.h>
+#include <grpc++/dynamic_thread_pool.h>
 #include <grpc++/server.h>
 #include <grpc++/server_builder.h>
 #include <grpc++/server_context.h>
@@ -102,7 +102,7 @@ class CliCallTest : public ::testing::Test {
   std::unique_ptr<Server> server_;
   std::ostringstream server_address_;
   TestServiceImpl service_;
-  FixedSizeThreadPool thread_pool_;
+  DynamicThreadPool thread_pool_;
 };
 
 // Send a rpc with a normal stub and then a CliCall. Verify they match.
diff --git a/tools/doxygen/Doxyfile.c++ b/tools/doxygen/Doxyfile.c++
index 4bdd8babde52fde2aeb2c8ca6ae470919416d151..785779beb5db13dc1a83565c7f5772ee4e88af36 100644
--- a/tools/doxygen/Doxyfile.c++
+++ b/tools/doxygen/Doxyfile.c++
@@ -773,6 +773,7 @@ include/grpc++/config.h \
 include/grpc++/config_protobuf.h \
 include/grpc++/create_channel.h \
 include/grpc++/credentials.h \
+include/grpc++/dynamic_thread_pool.h \
 include/grpc++/fixed_size_thread_pool.h \
 include/grpc++/generic_stub.h \
 include/grpc++/impl/call.h \
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index 1c73ca6294727e680439539b0af078da4557e9a4..5cf6168388e825ff07a2a1594c47e90135e23813 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -773,6 +773,7 @@ include/grpc++/config.h \
 include/grpc++/config_protobuf.h \
 include/grpc++/create_channel.h \
 include/grpc++/credentials.h \
+include/grpc++/dynamic_thread_pool.h \
 include/grpc++/fixed_size_thread_pool.h \
 include/grpc++/generic_stub.h \
 include/grpc++/impl/call.h \
@@ -825,6 +826,7 @@ src/cpp/common/rpc_method.cc \
 src/cpp/proto/proto_utils.cc \
 src/cpp/server/async_generic_service.cc \
 src/cpp/server/create_default_thread_pool.cc \
+src/cpp/server/dynamic_thread_pool.cc \
 src/cpp/server/fixed_size_thread_pool.cc \
 src/cpp/server/insecure_server_credentials.cc \
 src/cpp/server/server.cc \
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index ede3a23efd2952466eb9f6424563c231f681efaa..84c1099a2ae2c18b14d68ad42d871c3d1d4f281e 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -1181,6 +1181,21 @@
       "test/cpp/util/time_test.cc"
     ]
   }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc++", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c++", 
+    "name": "dynamic_thread_pool_test", 
+    "src": [
+      "test/cpp/server/dynamic_thread_pool_test.cc"
+    ]
+  }, 
   {
     "deps": [
       "gpr", 
@@ -10652,6 +10667,7 @@
       "include/grpc++/config_protobuf.h", 
       "include/grpc++/create_channel.h", 
       "include/grpc++/credentials.h", 
+      "include/grpc++/dynamic_thread_pool.h", 
       "include/grpc++/fixed_size_thread_pool.h", 
       "include/grpc++/generic_stub.h", 
       "include/grpc++/impl/call.h", 
@@ -10701,6 +10717,7 @@
       "include/grpc++/config_protobuf.h", 
       "include/grpc++/create_channel.h", 
       "include/grpc++/credentials.h", 
+      "include/grpc++/dynamic_thread_pool.h", 
       "include/grpc++/fixed_size_thread_pool.h", 
       "include/grpc++/generic_stub.h", 
       "include/grpc++/impl/call.h", 
@@ -10751,6 +10768,7 @@
       "src/cpp/proto/proto_utils.cc", 
       "src/cpp/server/async_generic_service.cc", 
       "src/cpp/server/create_default_thread_pool.cc", 
+      "src/cpp/server/dynamic_thread_pool.cc", 
       "src/cpp/server/fixed_size_thread_pool.cc", 
       "src/cpp/server/insecure_server_credentials.cc", 
       "src/cpp/server/secure_server_credentials.cc", 
@@ -10823,6 +10841,7 @@
       "include/grpc++/config_protobuf.h", 
       "include/grpc++/create_channel.h", 
       "include/grpc++/credentials.h", 
+      "include/grpc++/dynamic_thread_pool.h", 
       "include/grpc++/fixed_size_thread_pool.h", 
       "include/grpc++/generic_stub.h", 
       "include/grpc++/impl/call.h", 
@@ -10869,6 +10888,7 @@
       "include/grpc++/config_protobuf.h", 
       "include/grpc++/create_channel.h", 
       "include/grpc++/credentials.h", 
+      "include/grpc++/dynamic_thread_pool.h", 
       "include/grpc++/fixed_size_thread_pool.h", 
       "include/grpc++/generic_stub.h", 
       "include/grpc++/impl/call.h", 
@@ -10913,6 +10933,7 @@
       "src/cpp/proto/proto_utils.cc", 
       "src/cpp/server/async_generic_service.cc", 
       "src/cpp/server/create_default_thread_pool.cc", 
+      "src/cpp/server/dynamic_thread_pool.cc", 
       "src/cpp/server/fixed_size_thread_pool.cc", 
       "src/cpp/server/insecure_server_credentials.cc", 
       "src/cpp/server/server.cc", 
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index 98ef004c4bbb5f095545b9345e93a80d2eab61eb..b8a074534f94c022db1ec39a50d4e4723460722e 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -675,6 +675,15 @@
       "posix"
     ]
   }, 
+  {
+    "flaky": false, 
+    "language": "c++", 
+    "name": "dynamic_thread_pool_test", 
+    "platforms": [
+      "windows", 
+      "posix"
+    ]
+  }, 
   {
     "flaky": false, 
     "language": "c++", 
diff --git a/vsprojects/grpc++/grpc++.vcxproj b/vsprojects/grpc++/grpc++.vcxproj
index 2d13bf046b5e5c3c7df9c2e45c00b79ad45c77fa..51b91c643403318c78e6412b503d256469c0c89c 100644
--- a/vsprojects/grpc++/grpc++.vcxproj
+++ b/vsprojects/grpc++/grpc++.vcxproj
@@ -159,6 +159,7 @@
     <ClInclude Include="..\..\include\grpc++\config_protobuf.h" />
     <ClInclude Include="..\..\include\grpc++\create_channel.h" />
     <ClInclude Include="..\..\include\grpc++\credentials.h" />
+    <ClInclude Include="..\..\include\grpc++\dynamic_thread_pool.h" />
     <ClInclude Include="..\..\include\grpc++\fixed_size_thread_pool.h" />
     <ClInclude Include="..\..\include\grpc++\generic_stub.h" />
     <ClInclude Include="..\..\include\grpc++\impl\call.h" />
@@ -235,6 +236,8 @@
     </ClCompile>
     <ClCompile Include="..\..\src\cpp\server\create_default_thread_pool.cc">
     </ClCompile>
+    <ClCompile Include="..\..\src\cpp\server\dynamic_thread_pool.cc">
+    </ClCompile>
     <ClCompile Include="..\..\src\cpp\server\fixed_size_thread_pool.cc">
     </ClCompile>
     <ClCompile Include="..\..\src\cpp\server\insecure_server_credentials.cc">
diff --git a/vsprojects/grpc++/grpc++.vcxproj.filters b/vsprojects/grpc++/grpc++.vcxproj.filters
index c5d8db57aec8e3bdda2d0957f054fe5f2e3a9dd8..85b743a8fb40fa3c3e807b885aac84af1f792771 100644
--- a/vsprojects/grpc++/grpc++.vcxproj.filters
+++ b/vsprojects/grpc++/grpc++.vcxproj.filters
@@ -61,6 +61,9 @@
     <ClCompile Include="..\..\src\cpp\server\create_default_thread_pool.cc">
       <Filter>src\cpp\server</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\cpp\server\dynamic_thread_pool.cc">
+      <Filter>src\cpp\server</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\src\cpp\server\fixed_size_thread_pool.cc">
       <Filter>src\cpp\server</Filter>
     </ClCompile>
@@ -132,6 +135,9 @@
     <ClInclude Include="..\..\include\grpc++\credentials.h">
       <Filter>include\grpc++</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\dynamic_thread_pool.h">
+      <Filter>include\grpc++</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\include\grpc++\fixed_size_thread_pool.h">
       <Filter>include\grpc++</Filter>
     </ClInclude>
diff --git a/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj b/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj
index f03715b353d94d47068feb3f70b36a29795fa3ad..6886bbc2a01aeece89b2677152dd3dfebdee5b05 100644
--- a/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj
+++ b/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj
@@ -159,6 +159,7 @@
     <ClInclude Include="..\..\include\grpc++\config_protobuf.h" />
     <ClInclude Include="..\..\include\grpc++\create_channel.h" />
     <ClInclude Include="..\..\include\grpc++\credentials.h" />
+    <ClInclude Include="..\..\include\grpc++\dynamic_thread_pool.h" />
     <ClInclude Include="..\..\include\grpc++\fixed_size_thread_pool.h" />
     <ClInclude Include="..\..\include\grpc++\generic_stub.h" />
     <ClInclude Include="..\..\include\grpc++\impl\call.h" />
@@ -222,6 +223,8 @@
     </ClCompile>
     <ClCompile Include="..\..\src\cpp\server\create_default_thread_pool.cc">
     </ClCompile>
+    <ClCompile Include="..\..\src\cpp\server\dynamic_thread_pool.cc">
+    </ClCompile>
     <ClCompile Include="..\..\src\cpp\server\fixed_size_thread_pool.cc">
     </ClCompile>
     <ClCompile Include="..\..\src\cpp\server\insecure_server_credentials.cc">
diff --git a/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj.filters b/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
index 8f7f3bcd5e9da380b2d65db5495939d7b0726708..7f109a25578a7dc834e8b230c1c18cf8dc9bc12a 100644
--- a/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
+++ b/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
@@ -46,6 +46,9 @@
     <ClCompile Include="..\..\src\cpp\server\create_default_thread_pool.cc">
       <Filter>src\cpp\server</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\cpp\server\dynamic_thread_pool.cc">
+      <Filter>src\cpp\server</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\src\cpp\server\fixed_size_thread_pool.cc">
       <Filter>src\cpp\server</Filter>
     </ClCompile>
@@ -117,6 +120,9 @@
     <ClInclude Include="..\..\include\grpc++\credentials.h">
       <Filter>include\grpc++</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\include\grpc++\dynamic_thread_pool.h">
+      <Filter>include\grpc++</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\include\grpc++\fixed_size_thread_pool.h">
       <Filter>include\grpc++</Filter>
     </ClInclude>