--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/defrag/perf/t_perfdll.cpp	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,146 @@
+// Copyright (c) 2007-2009 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/defrag/perf/t_perfdll.cpp
+// 
+//
+
+#define __E32TEST_EXTENSION__
+#include <e32test.h>
+#include <e32hal.h>
+#include "..\d_pagemove.h"
+#include "t_perf.h"
+#include "t_testdll.h"
+
+_LIT(KDllbaseName, "t_defragperf");
+
+TPtrC TestPlExtNames = _L(".dll");
+
+const TInt KIterations = 50;
+
+#define MAXDLLS 1
+
+
+#define MINDLL_PAGES (100 * E_SIZE)
+
+typedef TInt (*TCallFunction)(TUint32 funcIndex, TInt param1, TInt param2);
+
+TInt DllDefrag::LoadTheLib(TInt aIdx, RTest& test)
+	{
+
+	TBuf<128>           nameBuffer;
+	TUint32             FuncCount;
+	TLibraryFunction    InitFunc;
+	TLibraryFunction    FunctionCountFunc;
+	TCallFunction       CallFunctionFunc;
+	TLibraryFunction    SetCloseFunc;
+	TLibraryFunction    Function0AddrFunc, FunctionNAddrFunc;
+	TInt retVal;
+
+	if (iLib == NULL)
+		return KErrNoMemory;
+
+
+	nameBuffer.Format(_L("%S%d%S"), &KDllbaseName, aIdx, &TestPlExtNames);
+
+	/* Load the DLL */
+	TEST_PRINTF(_L("Loading the DLL (%S) ...\n"), &nameBuffer);
+
+	retVal = iLib->Load(nameBuffer);
+
+	if (retVal != KErrNone)
+		{
+		test.Printf(_L("Load Failed %S (%d)\n"), &nameBuffer, aIdx);
+		return KErrGeneral;
+		}
+
+	TEST_PRINTF(_L("Loaded %S (%d)\n"), &nameBuffer, aIdx);
+
+	/* Test that the DLL is loaded correctly */
+	InitFunc = iLib->Lookup(DEFRAGDLL_FUNC_Init);
+	FunctionCountFunc = iLib->Lookup(DEFRAGDLL_FUNC_FunctionCount);
+	CallFunctionFunc = (TCallFunction)iLib->Lookup(DEFRAGDLL_FUNC_CallFunction);
+	SetCloseFunc = iLib->Lookup(DEFRAGDLL_FUNC_SetClose);
+	Function0AddrFunc = iLib->Lookup(DEFRAGDLL_FUNC_func0);
+	FunctionNAddrFunc = iLib->Lookup(DEFRAGDLL_FUNC_funcN);
+
+	if (InitFunc == NULL ||
+		FunctionCountFunc == NULL ||
+		CallFunctionFunc == NULL ||
+		SetCloseFunc == NULL)
+		{
+		return KErrGeneral;
+		}
+
+	retVal = (InitFunc)();
+	if (retVal != KErrNone)
+		return KErrGeneral;
+
+	FuncCount = (FunctionCountFunc)();
+	if (FuncCount == 0)
+		return KErrGeneral;
+
+	iFunc0Addr = (TInt8 *)(Function0AddrFunc)();
+	iFuncNAddr = (TInt8 *)(FunctionNAddrFunc)();
+		
+	TEST_PRINTF(_L("%S:Func0 = %x FuncN = %x\n"), &nameBuffer, iFunc0Addr, iFuncNAddr);
+	
+	if (iFunc0Addr == NULL || iFuncNAddr == NULL)
+			return KErrGeneral;
+
+	if (iFunc0Addr > iFuncNAddr) 
+		return KErrGeneral;
+
+	return KErrNone;
+	}
+
+TInt DllDefrag::TestDLLPerformance(TInt aDummy, RPageMove& aPageMove, RTest& test)
+{
+	DefragLatency timer;
+	TInt size = iFuncNAddr - iFunc0Addr;
+	const TUint8 *end = (TUint8 *)iFunc0Addr + size; 
+
+	TInt pageSize;
+	TInt r = UserHal::PageSizeInBytes(pageSize);
+	test_KErrNone(r);
+	TEST_PRINTF(_L("size %x"), size);
+	TInt pagesToMove = _ALIGN_UP(size, pageSize) / pageSize;
+	// Ensure there is at least one page to move
+	test_Compare(size, >=, 1);
+
+	timer.CalibrateTimer(test);
+
+
+	for (TInt j = 0; j < KIterations; j++)
+		{
+		TUint8* base = (TUint8 *)iFunc0Addr;
+				
+		timer.StartTimer();
+		while (base < end) 
+			{
+			test_KErrNone(aPageMove.TryMovingUserPage(base));
+			base += pageSize;
+			}
+		timer.StopTimer(test);
+		}
+	
+	DTime_t average, max, min, delay;
+	TEST_PRINTF(_L("Finished moving %d dll pages\n"), pagesToMove);
+	average = timer.GetResult(max, min, delay);
+	test.Printf(_L("Fast counter ticks to move %d dll pages: Av %d Min %d Max %d (Overhead %d)\n"), pagesToMove, average, min, max, delay);
+	test.Printf(_L("Average of %d ticks to move one page\n\n"), average / pagesToMove);
+
+	return KErrNone;
+	}
+
+