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Spotlight on SAP ASE 2.12 - User Guide

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SQL Workarea graph

Agents have access to a SQL workarea where the working copy of any executable section is stored. In partitioned databases, all non-SMP agents share this area. In other environments and with SMP agents, each agent has its own unique SQL work area.

The following parameters control the size of the SQL workarea :

Agent Type/Environment

Configuration Parameter

Non-SMP agents in partitioned database environments

APP_CTL_HEAP_SZ

Agents in all other environments

APPLHEAPSZ

SMP agents in all environments

APPLHEAPSZ

The graph

The SQL Workarea graph contains a single series, Hit Rate, which plots the percentage of lookups in the SQL workarea that were satisfied by statement sections already residing in the work area.

The graph title area shows the number of SQL workarea inserts and lookups that occurred during the last monitoring interval.

For related statistical information

The Statistics tab contains entries for all the SQL workarea statistical counts used to generate this graph. The names for these statistics begin with Section. These statistics are derived from the APPL_SECTION data elements that the DB2 snapshot monitor captures.

 

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