kerneltest/e32test/defrag/perf/t_timer.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 23 Dec 2009 11:43:31 +0000
changeset 31 56f325a607ea
parent 0 a41df078684a
permissions -rw-r--r--
Revision: 200951 Kit: 200951

// 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_timer.cpp
// 
//

#define __E32TEST_EXTENSION__
#include <e32test.h>
#include <hal.h>

#include "t_perf.h"


const TInt CalAttempts = 100;

void DefragLatency::CalibrateTimer(RTest& aTest)
	{
	TInt val = 0;
	TUint time1, time2;
	
	HAL::Get(HAL::EFastCounterFrequency, iFastCounterFreq);
	
	///////////////////////////////////////////
	for (TInt i = 0; i < CalAttempts; i++) 
		{
		time1 = GetFastCounter();
		time2 = GetFastCounter();
		if (time2 < time1)
			aTest.Printf(_L("CALIBRATION ERROR !!!!!!!!!!!!11\n"));
		val += time2 - time1;
		}
	iCalDelay = val / CalAttempts;
	}