Oracle memory troubleshooting, Part 3: Automatic top subheap dumping with heapdump If you haven’t read them – here are the previous articles in Oracle memory troubleshooting series: Part 1, Part 2 In Oracle, the HEAPDUMP dump event in Oracle allows you to dump various heap contents to tracefile. With adding the “level” parameter to this dump event, you can specify which heaps to dump. Julian Dyke