Question: what is px deq credit send blkd?
Answer: Answer: The PX Deq Credit: send blkd is an idle event in a parallel execution wait event for RAC. As an idle event, (but only when processes are running parallel to serial) this is not a event of great concern., See PX Deq Credit: send blkd" on MOSC (Note 271767.1) for details on this idle event.