In addition to latency, the processing time impacts performance. The processing time depends on the matcher or action type that you use. The types of matcher and action classifications are low, medium, and high.

The following table describes the processing time for each matcher type:

Performance Impact	Matcher/Action	Latency
Low	Any matcher Text matcher Time of day matcher Block action Rewrite action Search and Replace action Define Symbol action Nothing action	Less than 1 microsecond
Medium	SQL Syntax matcher From Clause Object matcher	1-100 microseconds
High	PL/SQL Function matcher	The processing time depends on the PL/SQL processing time.

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