kerneltest/e32test/bench/t_t64bm.cpp
changeset 9 96e5fb8b040d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/bench/t_t64bm.cpp	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,93 @@
+// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// e32test\bench\t_t64bm.cpp
+// 
+//
+
+#include <e32std.h>
+#include <e32std_private.h>
+#include <e32base.h>
+#include <e32base_private.h>
+#include <e32test.h>
+
+const TInt KHeapSize=0x2000;
+const TInt KAverageOverInSeconds=10;
+const TInt KNumberOfCalculationsPerLoop=100;
+
+volatile TInt64 count;
+volatile TInt64 a;
+volatile TInt64 b;
+volatile TInt64 c;
+volatile TInt64 barrier;
+
+RTest test(_L("T_T64BM"));
+
+GLREF_C TInt TInt64Addition(TAny*);
+GLREF_C TInt TInt64Subtraction(TAny*);
+GLREF_C TInt TInt64Multiplication(TAny*);
+GLREF_C TInt TInt64Division(TAny*);
+
+TInt64 runTest(TThreadFunction aFunction,const TDesC& aTitle)
+    {
+
+    RThread thread;
+	TInt r=thread.Create(aTitle,aFunction,KDefaultStackSize,KHeapSize,KHeapSize,NULL);
+	if(r!=KErrNone)
+		{
+		test.Printf(_L("Failed to create thread with error %d\n"),r);
+		return(r);
+		}
+    thread.Resume();
+    User::After(1000000);
+    count=0;
+    User::After(KAverageOverInSeconds*1000000);
+    TInt64 result=count;
+
+	barrier = a;
+	if (!barrier)
+		barrier = c;
+	barrier = b;
+	if (!barrier)
+		barrier = a;
+	barrier = c;
+	if (!barrier)
+		barrier = b;
+
+	thread.Kill(0);
+	thread.Close();
+	result*=KNumberOfCalculationsPerLoop;
+	result/=KAverageOverInSeconds;
+	r=I64INT(result);
+    test.Printf(_L("%S executed %d in 1 second\n"),&aTitle,r);
+    return(result);
+    }
+
+TInt E32Main()
+//
+// Benchmark for TInt64 functions
+//
+    {
+
+    test.Title();
+    test.Start(_L("Benchmarks for TInt64"));
+
+	runTest(TInt64Addition,_L("Addition"));
+	runTest(TInt64Subtraction,_L("Subtraction"));
+	runTest(TInt64Multiplication,_L("Multiplication"));
+	runTest(TInt64Division,_L("Division"));
+
+	test.End();
+	return(KErrNone);
+    }
+