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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 /** |
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17 @file |
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18 @test |
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19 @internalComponent - Internal Symbian test code |
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20 */ |
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21 |
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22 #include <e32debug.h> |
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23 #include <e32base.h> |
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24 #include <e32math.h> |
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25 #include <s32file.h> |
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26 #include <bautils.h> |
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27 #include <hal.h> |
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28 #include "graphicsmemoryhogger.h" |
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29 |
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30 _LIT(KTGraphicsMemoryHoggerPanic, "TGfxMemHog"); |
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31 |
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32 GLDEF_C TInt E32Main() |
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33 { |
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34 RDebug::Print(_L("Graphics Memory Hogger::E32Main - entry")); |
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35 |
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36 CTrapCleanup* TheTrapCleanup = CTrapCleanup::New(); |
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37 |
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38 TRAPD(err, StartTestL()); |
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39 if (err) |
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40 { |
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41 User::Panic(KTGraphicsMemoryHoggerPanic,err); |
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42 } |
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43 |
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44 delete TheTrapCleanup; |
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45 |
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46 RDebug::Print(_L("Graphics Memory Hogger::E32Main - exit")); |
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47 return KErrNone; |
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48 } |
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49 |
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50 LOCAL_C void StartTestL(void) |
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51 { |
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52 RDebug::Print(_L("Graphics Memory Hogger::StartTestL - entry")); |
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53 |
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54 TMemoryInfoV1Buf membuf; |
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55 UserHal::MemoryInfo(membuf); |
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56 const TReal maxmem = membuf().iTotalRamInBytes; |
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57 RDebug::Print(_L("GfxMemHog::TotalRamInBytes: %f"), maxmem); |
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58 |
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59 TInt pageSize = 0; |
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60 HAL::Get(HAL::EMemoryPageSize, pageSize); |
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61 RDebug::Print(_L("GfxMemHog::pageSize: %d"), pageSize); |
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62 |
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63 TInt maxHeap = 0; |
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64 HAL::Get(HALData::EMemoryRAM, maxHeap); |
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65 _LIT(KTGfxMemoryHogger, "GfxMemHog"); |
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66 |
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67 RHeap* myHeap; |
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68 myHeap = UserHeap::ChunkHeap(&KTGfxMemoryHogger, pageSize, maxmem); |
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69 |
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70 const TInt KOneSecond = 1000000; |
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71 |
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72 TInt newSize = pageSize; |
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73 // allocate an initial cell with size equal to the page size |
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74 TAny * myCell = myHeap->Alloc(newSize); |
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75 TAny * myCell2 = NULL; |
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76 |
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77 // for each cycle increase the memory allocated to the cell until |
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78 // the max is reached, at which point reset back to a cell of the |
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79 // size of a page. A second loop is used to write to memory locations |
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80 // in each page of the cell to ensure that the page is 'paged in' |
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81 FOREVER |
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82 { |
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83 newSize += pageSize*10; |
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84 TInt size = myHeap->Size(); |
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85 |
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86 myCell2 = myHeap->ReAlloc(myCell, newSize); |
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87 |
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88 if (myCell2 == NULL) |
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89 { |
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90 RDebug::Print(_L("GfxMemHog::ERROR: size reached = %d"), size); |
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91 newSize = pageSize; //reset |
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92 myCell = myHeap->ReAlloc(myCell, newSize); |
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93 |
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94 if (myCell == NULL) |
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95 { |
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96 RDebug::Print(_L("GfxMemHog::ERROR: Could not ReAlloc(myCell)")); |
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97 break; |
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98 } |
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99 } |
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100 else |
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101 { |
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102 RDebug::Print(_L("GfxMemHog::myHeap.Size() = %d"), myHeap->Size()); |
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103 |
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104 TInt index = 0; |
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105 TInt stop = (myHeap->AllocLen(myCell) - pageSize)/4; |
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106 RDebug::Print(_L("GfxMemHog::stop = %d"), stop); |
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107 RDebug::Print(_L("GfxMemHog::myCell.AllocLen() = %d"), myHeap->AllocLen(myCell)); |
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108 TInt loopCount = 0; |
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109 |
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110 // write to each page of memory in the heap |
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111 while(index<stop) |
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112 { |
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113 loopCount++; |
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114 TInt * myData = ((TInt *) myCell2) + index; |
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115 *myData = index; |
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116 index += pageSize/4; |
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117 } |
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118 RDebug::Print(_L("GfxMemHog::Loop count = %d"), loopCount); |
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119 } |
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120 |
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121 User::After(KOneSecond); |
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122 } |
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123 |
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124 |
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125 RDebug::Print(_L("Graphics Memory Hogger::StartTestL - exit")); |
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126 } |
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127 |