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// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32test\demandpaging\d_pagestrss.cpp
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//
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//
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#include <kernel/kern_priv.h>
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#include <kernel/cache.h>
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#include "d_pagestress.h"
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//
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// Class definitions
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//
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class DPageStressTestFactory : public DLogicalDevice
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{
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public:
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~DPageStressTestFactory();
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virtual TInt Install();
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virtual void GetCaps(TDes8& aDes) const;
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virtual TInt Create(DLogicalChannelBase*& aChannel);
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};
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class DPageStressTestChannel : public DLogicalChannelBase
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{
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public:
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DPageStressTestChannel();
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~DPageStressTestChannel();
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virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
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virtual TInt Request(TInt aFunction, TAny* a1, TAny* a2);
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TInt DoConsumeRamSetup(TInt aNumPagesLeft, TInt aPagesInBlock);
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TInt DoConsumeRamFinish(void);
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TInt DoConsumeSomeRam(TInt aBlocks);
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TInt DoReleaseSomeRam(TInt aBlocks);
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TInt FreeRam();
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TInt DoSetDebugFlag(TInt aState);
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public:
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DPageStressTestFactory* iFactory;
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private:
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TBool iRamAllocd;
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TInt iInitialFreeRam;
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TInt iTotalBlocks;
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TInt iBlockSize;
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TInt iLastBlockAllocd;
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TPhysAddr* iAddrArray;
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TInt iDebug;
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DMutex* iMutex;
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TInt iThreadCounter;
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TPhysAddr iAddrMin;
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TPhysAddr iAddrMax;
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TBool iDemandPaging;
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};
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//
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// DPageStressTestFactory
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//
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TInt DPageStressTestFactory::Install()
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{
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return SetName(&KPageStressTestLddName);
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}
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DPageStressTestFactory::~DPageStressTestFactory()
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{
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}
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void DPageStressTestFactory::GetCaps(TDes8& /*aDes*/) const
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{
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// Not used but required as DLogicalDevice::GetCaps is pure virtual
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}
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TInt DPageStressTestFactory::Create(DLogicalChannelBase*& aChannel)
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{
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aChannel = NULL;
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DPageStressTestChannel* channel=new DPageStressTestChannel;
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if(!channel)
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return KErrNoMemory;
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channel->iFactory = this;
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aChannel = channel;
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return KErrNone;
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}
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DECLARE_STANDARD_LDD()
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{
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return new DPageStressTestFactory;
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}
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//
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// DPageStressTestChannel
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//
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TInt DPageStressTestChannel::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
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{
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return KErrNone;
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}
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DPageStressTestChannel::DPageStressTestChannel()
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: iRamAllocd(EFalse), iInitialFreeRam(0), iTotalBlocks(0), iBlockSize(0), iLastBlockAllocd(0),
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iAddrArray(NULL), iDebug(0), iThreadCounter(1), iAddrMin(0), iAddrMax(0), iDemandPaging(ETrue)
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{
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_LIT(KMutexName,"TPageStressMutex");
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NKern::ThreadEnterCS();
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Kern::MutexCreate(iMutex, KMutexName,KMutexOrdNone);
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NKern::ThreadLeaveCS();
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SVMCacheInfo tempPages;
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if (Kern::HalFunction(EHalGroupVM,EVMHalGetCacheSize,&tempPages,0) != KErrNone)
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{
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iDemandPaging = EFalse;
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}
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}
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DPageStressTestChannel::~DPageStressTestChannel()
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{
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if (iRamAllocd)
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{
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DoConsumeRamFinish();
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}
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if (iMutex)
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{
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iMutex->Close(NULL);
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iMutex = NULL;
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}
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}
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TInt DPageStressTestChannel::Request(TInt aFunction, TAny* a1, TAny* a2)
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{
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TInt threadCount = __e32_atomic_tas_ord32(&iThreadCounter, 1, 1, 0);
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if (threadCount >= 2)
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{
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Kern::Printf("DPageStressTestChannel::Request threadCount = %d\n", threadCount);
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}
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NKern::ThreadEnterCS();
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Kern::MutexWait(*iMutex);
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TInt retVal = KErrNotSupported;
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switch(aFunction)
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{
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case RPageStressTestLdd::EDoConsumeRamSetup:
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{
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retVal = DPageStressTestChannel::DoConsumeRamSetup((TInt)a1, (TInt)a2);
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}
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break;
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case RPageStressTestLdd::EDoConsumeRamFinish:
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{
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retVal = DPageStressTestChannel::DoConsumeRamFinish();
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}
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break;
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case RPageStressTestLdd::EDoConsumeSomeRam:
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{
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retVal = DPageStressTestChannel::DoConsumeSomeRam((TInt)a1);
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}
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break;
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case RPageStressTestLdd::EDoReleaseSomeRam:
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{
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retVal = DPageStressTestChannel::DoReleaseSomeRam((TInt)a1);
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}
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break;
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case RPageStressTestLdd::EDoSetDebugFlag:
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{
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retVal = DoSetDebugFlag((TInt) a1);
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}
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break;
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default: break;
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}
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Kern::MutexSignal(*iMutex);
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NKern::ThreadLeaveCS();
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__e32_atomic_tas_ord32(&iThreadCounter, 1, -1, 0);
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return retVal;
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}
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//
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// DPageStressTestChannel::DoConsumeRamSetup
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//
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// This test attempts to consume most of the available Contiguous Ram until we need to ask the
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// demand paging code to release memory for it.
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//
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//
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//
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#define CHECK(c) { if(!(c)) { Kern::Printf("Fail %d", __LINE__); ; retVal = __LINE__;} }
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TInt DPageStressTestChannel::DoConsumeRamSetup(TInt aNumPagesLeft, TInt aPagesInBlock)
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{
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if (iRamAllocd)
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{
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Kern::Printf("DPageStressTestChannel trying to start again when RAM alloc'd\n");
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DoConsumeRamFinish();
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}
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TInt retVal = KErrNone;
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TInt pageSize = 0;
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CHECK(Kern::HalFunction(EHalGroupKernel,EKernelHalPageSizeInBytes,&pageSize,0)==KErrNone);
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iBlockSize = aPagesInBlock * pageSize;
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iInitialFreeRam = FreeRam();
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iTotalBlocks = (iInitialFreeRam/iBlockSize) + 10;
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iAddrArray = (TPhysAddr *)Kern::AllocZ(sizeof(TPhysAddr) * iTotalBlocks);
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CHECK(iAddrArray);
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if(!iAddrArray)
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{
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return KErrNoMemory;
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}
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SVMCacheInfo tempPages;
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iRamAllocd = ETrue;
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// get the initial free ram again as the heap may have grabbed a page during the alloc
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iInitialFreeRam = FreeRam();
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if (iDemandPaging)
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{
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CHECK(Kern::HalFunction(EHalGroupVM,EVMHalGetCacheSize,&tempPages,0) == KErrNone);
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if (iDebug)
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{
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Kern::Printf("Start : min %d max %d current %d maxFree %d freeRam %d",
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tempPages.iMinSize, tempPages.iMaxSize, tempPages.iCurrentSize ,tempPages.iMaxFreeSize, FreeRam());
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}
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}
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// allocate blocks to use up RAM until we fail to allocate any further...
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TInt index;
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// only alloc upto the point where we have a number of pages left.
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iLastBlockAllocd = iTotalBlocks - (aNumPagesLeft / aPagesInBlock);
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for (index = 0; index < iLastBlockAllocd; index ++)
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{
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if (iDemandPaging)
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{
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CHECK(Kern::HalFunction(EHalGroupVM,EVMHalGetCacheSize,&tempPages,0) == KErrNone);
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}
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if (KErrNone != Epoc::AllocPhysicalRam(iBlockSize, iAddrArray[index], 0))
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{
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iAddrArray[index] = NULL;
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break;
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}
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if ((iAddrMin == 0) || (iAddrMin > iAddrArray[index]))
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{
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iAddrMin = iAddrArray[index];
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}
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if (iAddrMax < iAddrArray[index])
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{
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iAddrMax = iAddrArray[index];
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}
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if (iDemandPaging)
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{
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CHECK(Kern::HalFunction(EHalGroupVM,EVMHalGetCacheSize,&tempPages,0) == KErrNone);
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}
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}
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iLastBlockAllocd = index - 1;
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if (iDemandPaging)
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{
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CHECK(Kern::HalFunction(EHalGroupVM,EVMHalGetCacheSize,&tempPages,0) == KErrNone);
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if (iDebug)
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{
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Kern::Printf("Alloc'd : min %d max %d current %d maxFree %d freeRam %d lastIndex %d addrMin 0x%08x addrMax 0x%08x",
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tempPages.iMinSize, tempPages.iMaxSize, tempPages.iCurrentSize ,tempPages.iMaxFreeSize, FreeRam(), iLastBlockAllocd, iAddrMin, iAddrMax);
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}
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}
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return retVal;
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}
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TInt DPageStressTestChannel::DoConsumeRamFinish(void)
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{
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TInt retVal = KErrNone;
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if (iRamAllocd)
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{
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SVMCacheInfo tempPages;
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if (iDemandPaging)
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{
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CHECK(Kern::HalFunction(EHalGroupVM,EVMHalGetCacheSize,&tempPages,0) == KErrNone);
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if (iDebug)
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{
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Kern::Printf("Cleanup cache info: iMinSize %d iMaxSize %d iCurrentSize %d iMaxFreeSize %d",
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|
299 |
tempPages.iMinSize, tempPages.iMaxSize, tempPages.iCurrentSize ,tempPages.iMaxFreeSize);
|
|
sl@0
|
300 |
}
|
|
sl@0
|
301 |
}
|
|
sl@0
|
302 |
TInt index = iTotalBlocks - 1;
|
|
sl@0
|
303 |
|
|
sl@0
|
304 |
TBool firstTime = ETrue;
|
|
sl@0
|
305 |
|
|
sl@0
|
306 |
// free the memory we allocated...
|
|
sl@0
|
307 |
while(index >= 0)
|
|
sl@0
|
308 |
{
|
|
sl@0
|
309 |
if (iAddrArray[index])
|
|
sl@0
|
310 |
{
|
|
sl@0
|
311 |
if ((iAddrArray[index] < iAddrMin) || (iAddrArray[index] > iAddrMax))
|
|
sl@0
|
312 |
{
|
|
sl@0
|
313 |
Kern::Printf("ERROR: DoConsumeRamFinish : index %d addr 0x%08x min 0x%08x max 0x%08x\n : firstTime %d iLastBlockAllocd %d iTotalBlock %d", index, iAddrArray[index], iAddrMin, iAddrMax, firstTime, iLastBlockAllocd, iTotalBlocks);
|
|
sl@0
|
314 |
TInt tempIndex = index - 8;
|
|
sl@0
|
315 |
while (tempIndex < (index + 8))
|
|
sl@0
|
316 |
{
|
|
sl@0
|
317 |
Kern::Printf(" --> index %d addr 0x%08x", tempIndex, iAddrArray[tempIndex]);
|
|
sl@0
|
318 |
tempIndex ++;
|
|
sl@0
|
319 |
}
|
|
sl@0
|
320 |
|
|
sl@0
|
321 |
iAddrArray[index] = NULL;
|
|
sl@0
|
322 |
}
|
|
sl@0
|
323 |
else
|
|
sl@0
|
324 |
{
|
|
sl@0
|
325 |
TInt r = Epoc::FreePhysicalRam(iAddrArray[index], iBlockSize);
|
|
sl@0
|
326 |
iAddrArray[index] = NULL;
|
|
sl@0
|
327 |
CHECK(r==KErrNone);
|
|
sl@0
|
328 |
}
|
|
sl@0
|
329 |
}
|
|
sl@0
|
330 |
|
|
sl@0
|
331 |
firstTime = EFalse;
|
|
sl@0
|
332 |
--index;
|
|
sl@0
|
333 |
}
|
|
sl@0
|
334 |
|
|
sl@0
|
335 |
if (iDebug)
|
|
sl@0
|
336 |
{
|
|
sl@0
|
337 |
Kern::Printf("DoConsumeRamFinish : FreeRam Initial 0x%x now 0x%x",iInitialFreeRam, FreeRam());
|
|
sl@0
|
338 |
}
|
|
sl@0
|
339 |
//CHECK(FreeRam() == iInitialFreeRam)
|
|
sl@0
|
340 |
if (FreeRam() != iInitialFreeRam)
|
|
sl@0
|
341 |
{
|
|
sl@0
|
342 |
Kern::Printf("DoConsumeRamFinish : FreeRam Initial 0x%x now 0x%x NOT EQUAL!",iInitialFreeRam, FreeRam());
|
|
sl@0
|
343 |
}
|
|
sl@0
|
344 |
|
|
sl@0
|
345 |
Kern::Free(iAddrArray);
|
|
sl@0
|
346 |
iAddrArray = NULL;
|
|
sl@0
|
347 |
iAddrMin = 0;
|
|
sl@0
|
348 |
iAddrMax = 0;
|
|
sl@0
|
349 |
iLastBlockAllocd = -1;
|
|
sl@0
|
350 |
iTotalBlocks = 0;
|
|
sl@0
|
351 |
iRamAllocd = EFalse;
|
|
sl@0
|
352 |
|
|
sl@0
|
353 |
if (iDemandPaging)
|
|
sl@0
|
354 |
{
|
|
sl@0
|
355 |
CHECK(Kern::HalFunction(EHalGroupVM,EVMHalGetCacheSize,&tempPages,0) == KErrNone);
|
|
sl@0
|
356 |
if (iDebug)
|
|
sl@0
|
357 |
{
|
|
sl@0
|
358 |
Kern::Printf("End cache info: iMinSize %d iMaxSize %d iCurrentSize %d iMaxFreeSize %d",
|
|
sl@0
|
359 |
tempPages.iMinSize, tempPages.iMaxSize, tempPages.iCurrentSize ,tempPages.iMaxFreeSize);
|
|
sl@0
|
360 |
}
|
|
sl@0
|
361 |
}
|
|
sl@0
|
362 |
}
|
|
sl@0
|
363 |
return retVal;
|
|
sl@0
|
364 |
}
|
|
sl@0
|
365 |
|
|
sl@0
|
366 |
TInt DPageStressTestChannel::DoConsumeSomeRam(TInt aBlocks)
|
|
sl@0
|
367 |
{
|
|
sl@0
|
368 |
TInt retVal = KErrNone;
|
|
sl@0
|
369 |
|
|
sl@0
|
370 |
return retVal;
|
|
sl@0
|
371 |
}
|
|
sl@0
|
372 |
|
|
sl@0
|
373 |
TInt DPageStressTestChannel::DoReleaseSomeRam(TInt aBlocks)
|
|
sl@0
|
374 |
{
|
|
sl@0
|
375 |
if(iLastBlockAllocd<0)
|
|
sl@0
|
376 |
return KErrUnderflow;
|
|
sl@0
|
377 |
|
|
sl@0
|
378 |
TInt retVal = KErrNone;
|
|
sl@0
|
379 |
if (iRamAllocd)
|
|
sl@0
|
380 |
{
|
|
sl@0
|
381 |
SVMCacheInfo tempPages;
|
|
sl@0
|
382 |
|
|
sl@0
|
383 |
if (iDemandPaging)
|
|
sl@0
|
384 |
{
|
|
sl@0
|
385 |
CHECK(Kern::HalFunction(EHalGroupVM,EVMHalGetCacheSize,&tempPages,0) == KErrNone);
|
|
sl@0
|
386 |
if (iDebug)
|
|
sl@0
|
387 |
{
|
|
sl@0
|
388 |
Kern::Printf("Release : min %d max %d current %d maxFree %d freeRam %d lastIndex %d",
|
|
sl@0
|
389 |
tempPages.iMinSize, tempPages.iMaxSize, tempPages.iCurrentSize ,tempPages.iMaxFreeSize, FreeRam(), iLastBlockAllocd);
|
|
sl@0
|
390 |
}
|
|
sl@0
|
391 |
}
|
|
sl@0
|
392 |
|
|
sl@0
|
393 |
TInt index = iLastBlockAllocd;
|
|
sl@0
|
394 |
iLastBlockAllocd -= aBlocks;
|
|
sl@0
|
395 |
|
|
sl@0
|
396 |
TBool firstTime = ETrue;
|
|
sl@0
|
397 |
|
|
sl@0
|
398 |
// free the memory we allocated...
|
|
sl@0
|
399 |
while((index >= 0) && (index > iLastBlockAllocd))
|
|
sl@0
|
400 |
{
|
|
sl@0
|
401 |
if (iAddrArray[index])
|
|
sl@0
|
402 |
{
|
|
sl@0
|
403 |
//Kern::Printf("DoReleaseSomeRam : index %d addr 0x%08x size %d", index, iAddrArray[index], iBlockSize);
|
|
sl@0
|
404 |
if ((iAddrArray[index] < iAddrMin) || (iAddrArray[index] > iAddrMax))
|
|
sl@0
|
405 |
{
|
|
sl@0
|
406 |
Kern::Printf("ERROR: DoReleaseSomeRam : index %d addr 0x%08x min 0x%08x max 0x%08x\n : firstTime %d iLastBlockAllocd %d iTotalBlock %d", index, iAddrArray[index], iAddrMin, iAddrMax, firstTime, iLastBlockAllocd + aBlocks, iTotalBlocks);
|
|
sl@0
|
407 |
TInt tempIndex = index - 8;
|
|
sl@0
|
408 |
while (tempIndex < (index + 8))
|
|
sl@0
|
409 |
{
|
|
sl@0
|
410 |
Kern::Printf(" --> index %d addr 0x%08x", tempIndex, iAddrArray[tempIndex]);
|
|
sl@0
|
411 |
tempIndex ++;
|
|
sl@0
|
412 |
}
|
|
sl@0
|
413 |
|
|
sl@0
|
414 |
iAddrArray[index] = NULL;
|
|
sl@0
|
415 |
}
|
|
sl@0
|
416 |
else
|
|
sl@0
|
417 |
{
|
|
sl@0
|
418 |
TInt r = Epoc::FreePhysicalRam(iAddrArray[index], iBlockSize);
|
|
sl@0
|
419 |
iAddrArray[index] = NULL;
|
|
sl@0
|
420 |
CHECK(r==KErrNone);
|
|
sl@0
|
421 |
}
|
|
sl@0
|
422 |
}
|
|
sl@0
|
423 |
else
|
|
sl@0
|
424 |
{
|
|
sl@0
|
425 |
Kern::Printf("ERROR: DoReleaseSomeRam : trying to free NULL index %d", index, iAddrArray[index], iAddrMin, iAddrMax);
|
|
sl@0
|
426 |
TInt tempIndex = index - 8;
|
|
sl@0
|
427 |
while (tempIndex < (index + 8))
|
|
sl@0
|
428 |
{
|
|
sl@0
|
429 |
Kern::Printf(" --> index %d addr 0x%08x", tempIndex, iAddrArray[tempIndex]);
|
|
sl@0
|
430 |
tempIndex ++;
|
|
sl@0
|
431 |
}
|
|
sl@0
|
432 |
|
|
sl@0
|
433 |
}
|
|
sl@0
|
434 |
firstTime = EFalse;
|
|
sl@0
|
435 |
--index;
|
|
sl@0
|
436 |
}
|
|
sl@0
|
437 |
if (index <= 0)
|
|
sl@0
|
438 |
{
|
|
sl@0
|
439 |
Kern::Printf("WARNING : DoReleaseSomeRam : index %d !!!!!", index);
|
|
sl@0
|
440 |
}
|
|
sl@0
|
441 |
|
|
sl@0
|
442 |
if (iDemandPaging)
|
|
sl@0
|
443 |
{
|
|
sl@0
|
444 |
CHECK(Kern::HalFunction(EHalGroupVM,EVMHalGetCacheSize,&tempPages,0) == KErrNone);
|
|
sl@0
|
445 |
if (iDebug)
|
|
sl@0
|
446 |
{
|
|
sl@0
|
447 |
Kern::Printf("Released : min %d max %d current %d maxFree %d freeRam %d lastIndex %d",
|
|
sl@0
|
448 |
tempPages.iMinSize, tempPages.iMaxSize, tempPages.iCurrentSize ,tempPages.iMaxFreeSize, FreeRam(), iLastBlockAllocd);
|
|
sl@0
|
449 |
}
|
|
sl@0
|
450 |
}
|
|
sl@0
|
451 |
}
|
|
sl@0
|
452 |
return retVal;
|
|
sl@0
|
453 |
}
|
|
sl@0
|
454 |
|
|
sl@0
|
455 |
|
|
sl@0
|
456 |
TInt DPageStressTestChannel::FreeRam()
|
|
sl@0
|
457 |
{
|
|
sl@0
|
458 |
return Kern::FreeRamInBytes();
|
|
sl@0
|
459 |
}
|
|
sl@0
|
460 |
|
|
sl@0
|
461 |
TInt DPageStressTestChannel::DoSetDebugFlag(TInt aState)
|
|
sl@0
|
462 |
{
|
|
sl@0
|
463 |
iDebug = aState;
|
|
sl@0
|
464 |
return KErrNone;
|
|
sl@0
|
465 |
}
|