The additional overhead of running the SQL Trace facility against an application with performance problems is normally insignificant compared with the inherent overhead caused by the application's inefficiency. When the SQL Trace facility is enabled, performance statistics for all SQL statements executed in a user session or in the instance are placed into trace files. You can enable the SQL Trace facility for a session or for an instance. Username under which each parse occurred.It generates the following statistics for each statement: The SQL Trace facility provides performance information on individual SQL statements. For best results, use these tools with EXPLAIN PLAN rather than using EXPLAIN PLAN alone. The SQL Trace facility and TKPROF let you accurately assess the efficiency of the SQL statements an application runs. Avoiding Pitfalls in TKPROF Interpretation.Using the SQL Trace Facility and TKPROF.This chapter contains the following sections: The SQL Trace facility and TKPROF are two basic performance diagnostic tools that can help you monitor and tune applications running against the Oracle Server.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |