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Author: Kuassim

java/ojvm/memtest.sql

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+REM
+REM
+REM ------------------------------------------------------------------------------
+REM Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+REM
+REM Portions Copyright 2006-2015, Kuassi Mensah. All rights reserved.
+REM https://www.amazon.com/dp/1555583296
+REM
+REM ------------------------------------------------------------------------------
+REM DESCRIPTION
+REM
+REM The following code sample is provided for illustration purposes only.
+REM The default values should work for most applications.
+REM Before altering these values for your production system, please
+REM test beforehand
+REM
+
+
+create or replace and resolve java source named memtest  as
+import oracle.aurora.vm.OracleRuntime;
+public class memtest
+{
+
+ public static void Tests ()
+ {
+    System.out.println("getSessionSize(): "
+                               + OracleRuntime.getSessionSize());
+                               
+    System.out.println("Old NewspaceSize(): "
+                               + OracleRuntime.getNewspaceSize());
+    OracleRuntime.setNewspaceSize(2 * OracleRuntime.getNewspaceSize());                          
+    System.out.println("New NewspaceSize(): "
+                               + OracleRuntime.getNewspaceSize());
+                               
+    System.out.println("Old MaxRunspaceSize(): "
+                               + OracleRuntime.getMaxRunspaceSize());
+    OracleRuntime.setMaxRunspaceSize(2 * OracleRuntime.getMaxRunspaceSize());                          
+    System.out.println("New MaxRunspaceSize(): "
+                               + OracleRuntime.getMaxRunspaceSize());
+                               
+    System.out.println("getJavaPoolSize(): "
+                               + OracleRuntime.getJavaPoolSize());
+    System.out.println("getSessionSoftLimit(): "
+                               + OracleRuntime.getSessionSoftLimit());
+    System.out.println("Old SessionGCThreshold(): "
+                               + OracleRuntime.getSessionGCThreshold());
+    OracleRuntime.setSessionGCThreshold(2 * OracleRuntime.getSessionGCThreshold());
+    System.out.println("New SessionGCThreshold(): "
+                               + OracleRuntime.getSessionGCThreshold());
+
+    System.out.println("Old NewspaceSize: " + OracleRuntime.getNewspaceSize());
+    OracleRuntime.setNewspaceSize(2 * OracleRuntime.getNewspaceSize());
+    System.out.println("New NewspaceSize: " + OracleRuntime.getNewspaceSize());
+    
+    System.out.println("Old MaxMemsize: " + OracleRuntime.getMaxMemorySize());
+    OracleRuntime.setMaxMemorySize(2 * OracleRuntime.getMaxMemorySize());
+    System.out.println("New MaxMemsize: " + OracleRuntime.getMaxMemorySize());
+    
+    System.out.println("Old JavaStackSize(): "
+                                + OracleRuntime.getJavaStackSize());
+    OracleRuntime.setJavaStackSize(2 * OracleRuntime.getJavaStackSize());
+    System.out.println("New JavaStackSize(): "
+                                + OracleRuntime.getJavaStackSize());
+    
+    System.out.println("Old ThreadStackSize(): "
+                                + OracleRuntime.getThreadStackSize());
+    OracleRuntime.setThreadStackSize(2 * OracleRuntime.getThreadStackSize());
+    System.out.println("New ThreadStackSize(): "
+                                + OracleRuntime.getThreadStackSize());
+  }
+}
+/
+show errors;
+
+create or replace procedure memtests
+  as language java name 
+  'memtest.Tests()';
+/
+
+show errors;
+
+set serveroutput on
+Call dbms_java.set_output(50000);
+call memtests();