os/kernelhwsrv/kerneltest/e32test/defrag/perf/t_timer.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
sl@0
     1
// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0
     2
// All rights reserved.
sl@0
     3
// This component and the accompanying materials are made available
sl@0
     4
// under the terms of the License "Eclipse Public License v1.0"
sl@0
     5
// which accompanies this distribution, and is available
sl@0
     6
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0
     7
//
sl@0
     8
// Initial Contributors:
sl@0
     9
// Nokia Corporation - initial contribution.
sl@0
    10
//
sl@0
    11
// Contributors:
sl@0
    12
//
sl@0
    13
// Description:
sl@0
    14
// e32test/defrag/perf/t_timer.cpp
sl@0
    15
// 
sl@0
    16
//
sl@0
    17
sl@0
    18
#define __E32TEST_EXTENSION__
sl@0
    19
#include <e32test.h>
sl@0
    20
#include <hal.h>
sl@0
    21
sl@0
    22
#include "t_perf.h"
sl@0
    23
sl@0
    24
sl@0
    25
const TInt CalAttempts = 100;
sl@0
    26
sl@0
    27
void DefragLatency::CalibrateTimer(RTest& aTest)
sl@0
    28
	{
sl@0
    29
	TInt val = 0;
sl@0
    30
	TUint time1, time2;
sl@0
    31
	
sl@0
    32
	HAL::Get(HAL::EFastCounterFrequency, iFastCounterFreq);
sl@0
    33
	
sl@0
    34
	///////////////////////////////////////////
sl@0
    35
	for (TInt i = 0; i < CalAttempts; i++) 
sl@0
    36
		{
sl@0
    37
		time1 = GetFastCounter();
sl@0
    38
		time2 = GetFastCounter();
sl@0
    39
		if (time2 < time1)
sl@0
    40
			aTest.Printf(_L("CALIBRATION ERROR !!!!!!!!!!!!11\n"));
sl@0
    41
		val += time2 - time1;
sl@0
    42
		}
sl@0
    43
	iCalDelay = val / CalAttempts;
sl@0
    44
	}
sl@0
    45