Wait Event – rdbms ipc reply

This event is used to wait for a reply from one of the background processes. Wait Time: The wait time is specified by the user and is indicated by the parameter timeout.   Parameter Description from_process The background process for which the session is waiting. The wait is for a reply to an IPC message sent by…

Wait Event – rdbms ipc message

The background processes (LGWR, DBWR, LMS0) use this event to indicate that they are idle and are waiting for the foreground processes to send them an IPC message to do some work. Wait Time: Up to 3 seconds. The parameter timeout shows the true sleep time.   Parameter Description timeout The amount of time that the session waits…