starting to add kernel functions for stream 
starting to add kernel functions for stream 

hoangt/goblin-core,tangyibin/goblin-core,hoangt/goblin-core,tangyibin/goblin-core,tangyibin/goblin-core,hoangt/goblin-core,hoangt/goblin-core,hoangt/goblin-core,tangyibin/goblin-core,hoangt/goblin-core,tangyibin/goblin-core,tangyibin/goblin-core,hoangt/goblin-core,hoangt/goblin-core,hoangt/goblin-core,tangyibin/goblin-core,tangyibin/goblin-core,hoangt/goblin-core,tangyibin/goblin-core,hoangt/goblin-core,tangyibin/goblin-core,tangyibin/goblin-core