Identifying the cause of high CPU utilisation for process oracle.exe on a Windows environment
I was running a PeopleSoft Application Engine process that I suspected was hogging the CPU on a Windows environment. I wanted to see whether this process was in fact the cause of the CPU intensive activities on the database. Interestingly, I discovered that on a Windows environment, an Oracle instance is composed of one oracle.exe process with many different threads. Each thread represents either a background process (PMON, SMON, etc.) or a foreground user session.…