diff --git a/examples/mesh/internal_communication/sdkconfig.defaults b/examples/mesh/internal_communication/sdkconfig.defaults
new file mode 100644
index 0000000000..4983b4dfe3
--- /dev/null
+++ b/examples/mesh/internal_communication/sdkconfig.defaults
@@ -0,0 +1 @@
+CONFIG_COMPILER_OPTIMIZATION_SIZE=y
diff --git a/examples/system/ota/advanced_https_ota/sdkconfig.ci.bluedroid b/examples/system/ota/advanced_https_ota/sdkconfig.ci.bluedroid
index 22530e86cf..66640a60ee 100644
--- a/examples/system/ota/advanced_https_ota/sdkconfig.ci.bluedroid
+++ b/examples/system/ota/advanced_https_ota/sdkconfig.ci.bluedroid
@@ -7,6 +7,7 @@ CONFIG_CTRL_BTDM_MODEM_SLEEP=y
 CONFIG_BT_GATTS_SEND_SERVICE_CHANGE_MANUAL=y
 CONFIG_BT_BTU_TASK_STACK_SIZE=4512
 CONFIG_BT_BLE_42_FEATURES_SUPPORTED=y
+CONFIG_BT_STACK_NO_LOG=y
 
 # Partition Table
 CONFIG_PARTITION_TABLE_CUSTOM=y