Recursive Calls

Here is one interesting subject – recursive calls and performance monitoring instrumentation. This is just a few observations of the session tracing facility, Statspack, AWR and Tkprof point of view on recursive calls. We want to observe and clarify how the Tkprof, Statspack and AWR calculate top and recursive call statistics. Read the rest of this entry »

Call-Less Cursor

Many people know that the Tkprof does not report base statistics and times for calls that have recursive calls. This can be handled by other alternative tools. There is one more unfortunate effect to watch out for when doing tuning of a DB that does fair amount of LOB operations. It seems to be more fundamental and much harder to cope with. Read the rest of this entry »