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1 // Copyright (c) 1996-2009 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 the License "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 // e32test\bench\t_membm.cpp |
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15 // |
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16 // |
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17 |
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18 #include <e32std.h> |
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19 #include <e32std_private.h> |
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20 #include <e32base.h> |
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21 #include <e32base_private.h> |
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22 #include <e32test.h> |
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23 #include <e32svr.h> |
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24 |
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25 #define ALIGN_UP(x, y) (TInt8*)(_ALIGN_UP((TInt)(x), (y))) |
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26 #define ALIGN_DOWN(x, y) (TInt8*)(_ALIGN_DOWN((TInt)(x), (y))) |
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27 |
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28 const TInt KHeapSize=720*1024; |
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29 const TInt KAverageOverInMilliseconds=500; |
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30 const TInt Len64K = 64*1024; |
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31 |
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32 volatile TInt count; |
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33 volatile TInt iters; |
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34 |
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35 TInt8* trg; |
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36 TInt8* src; |
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37 TInt8* dummy; |
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38 TInt8 trgoffset; |
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39 TInt8 srcoffset; |
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40 TInt len=64*1024; |
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41 TInt64 result; |
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42 |
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43 RTest test(_L("T_MEMBM")); |
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44 |
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45 GLREF_C TInt MemBaseline(TAny*); |
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46 GLREF_C TInt MemCopy(TAny*); |
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47 GLREF_C TInt MemMove(TAny*); |
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48 GLREF_C TInt MemFill(TAny*); |
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49 GLREF_C TInt MemSwap(TAny*); |
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50 GLREF_C TInt WordMove(TAny*); |
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51 GLREF_C TInt MemCopyUncached(TAny*); |
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52 GLREF_C TInt WordMoveUncached(TAny*); |
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53 GLREF_C TInt MemFillUncached(TAny*); |
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54 GLREF_C TInt PurgeCache(); |
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55 |
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56 TInt nextLen(TInt aTestLength) |
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57 { |
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58 if (len == Len64K) |
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59 return 0; |
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60 if (!aTestLength) |
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61 return Len64K; |
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62 |
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63 TInt inc = aTestLength; |
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64 for (TInt i = len >> 5 ; i ; i >>= 1) |
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65 inc <<= 1; |
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66 |
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67 return len + inc; |
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68 } |
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69 |
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70 /** |
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71 * Run benchmarks on the supplied function. |
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72 * |
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73 * @param aFunction The function to benchmark |
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74 * @param aTestBackwards Run copy tests with overlapping areas to test backwards copy |
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75 * @param aTestSrcAlign Run tests for source alignments 0 - 31 |
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76 * @param aTestDestAlign Run tests for destination alignments 0 - 31 |
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77 * @param aTestLength If non-zero, run tests for different lengths starting at aTestLength |
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78 */ |
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79 TInt64 runTest(TThreadFunction aFunction,const TDesC& aTitle, TBool aTestBackwards, TBool aTestSrcAlign, TBool aTestDestAlign, TInt aTestLength) |
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80 { |
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81 TInt8* buffer = (TInt8*)User::Alloc(640 * 1024 + 32); |
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82 test(buffer != 0); |
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83 |
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84 test(!(aTestLength && aTestBackwards)); // not supported |
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85 |
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86 TBool goingforward=ETrue; |
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87 |
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88 FOREVER |
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89 { |
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90 if (aTestLength) |
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91 test.Printf(_L("Running length experiment on %S. Results follow:\n"), &aTitle); |
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92 |
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93 len = 0; |
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94 while(len = nextLen(aTestLength), len) |
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95 { |
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96 src = ALIGN_UP(buffer, 32); |
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97 if (goingforward) |
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98 trg = src + 512 * 1024; // blow half a meg |
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99 else |
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100 trg = ALIGN_DOWN(src + len - 1, 32); // ensure overlapping, doesn't work for length < 32 |
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101 |
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102 if (aTestLength) |
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103 test.Printf(_L("%d, "), len); |
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104 else |
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105 test.Printf(_L("Test array bases trg=0x%08x, src=0x%08x. Running experiment on %S. Results follow:\n"), trg, src, &aTitle); |
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106 |
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107 const TInt xsquare = aTestDestAlign ? 32 : 1; |
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108 const TInt ysquare = aTestSrcAlign ? 32 : 1; |
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109 |
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110 for (srcoffset = 0 ; srcoffset < ysquare ; srcoffset++) |
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111 { |
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112 for (trgoffset = 0 ; trgoffset < xsquare ; trgoffset++) |
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113 { |
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114 RThread thread; |
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115 TInt r=thread.Create(aTitle,aFunction,KDefaultStackSize,KHeapSize,KHeapSize,NULL); |
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116 if(r!=KErrNone) |
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117 { |
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118 test.Printf(_L("Failed to create thread with error %d\n"),r); |
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119 return(r); |
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120 } |
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121 thread.SetPriority(EPriorityLess); |
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122 thread.Resume(); |
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123 User::After(50000); // 50 msec is more than enough in EKA2 |
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124 count=0; |
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125 User::After(5000); // even if the second reset fails, max inaccuracy is 5000 usecs |
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126 count=0; // try and reduce the probability of failing to reset |
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127 User::After(KAverageOverInMilliseconds*1000); |
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128 result=count; |
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129 thread.Kill(0); |
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130 CLOSE_AND_WAIT(thread); |
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131 PurgeCache(); |
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132 |
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133 result *= 1000; |
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134 result /= KAverageOverInMilliseconds; |
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135 |
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136 TInt s = I64INT(result); |
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137 test.Printf(_L("%d, "),s); |
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138 } |
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139 test.Printf(_L("\n")); |
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140 } |
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141 } |
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142 |
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143 if (aTestBackwards && goingforward) |
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144 goingforward = EFalse; |
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145 else |
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146 break; |
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147 } |
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148 |
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149 User::Free(buffer); |
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150 |
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151 return(result); |
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152 } |
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153 |
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154 enum TTestType |
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155 { |
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156 ENormalTests, |
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157 EFullTests, |
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158 ELengthTests, |
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159 }; |
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160 |
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161 // Return whether we should run the full alignment benchmarks |
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162 TTestType ParseCommandLine() |
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163 { |
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164 TBuf<32> args; |
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165 User::CommandLine(args); |
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166 |
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167 if (args == _L("-f")) |
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168 return EFullTests; |
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169 else if (args == _L("-l")) |
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170 return ELengthTests; |
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171 else if (args != KNullDesC) |
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172 { |
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173 test.Printf(_L("usage: t_membm [OPTIONS]\n")); |
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174 test.Printf(_L(" -f Run full alignment benchmarks\n")); |
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175 test.Printf(_L(" -l Run memcpy length benchmarks\n")); |
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176 test(EFalse); |
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177 } |
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178 |
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179 return ENormalTests; |
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180 } |
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181 |
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182 TInt E32Main() |
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183 // |
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184 // Benchmark for Mem functions |
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185 // |
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186 { |
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187 |
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188 test.Title(); |
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189 test.Start(_L("Benchmarks for Mem functions")); |
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190 |
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191 TTestType testType = ParseCommandLine(); |
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192 |
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193 switch (testType) |
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194 { |
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195 case ENormalTests: |
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196 case EFullTests: |
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197 { |
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198 TBool srcAlign = testType == EFullTests; |
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199 |
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200 if (srcAlign) |
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201 test.Printf(_L("Running full alignment benchmarks (may take a long time)\n")); |
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202 else |
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203 test.Printf(_L("Not testing source alignment (run with -f if you want this)\n")); |
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204 |
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205 runTest(MemBaseline, _L("Processor baseline"), EFalse, EFalse, EFalse, 0); |
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206 runTest(MemFill, _L("Memory fill"), EFalse, EFalse, ETrue, 0); |
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207 runTest(MemCopy, _L("Memory copy"), ETrue, srcAlign, ETrue, 0); |
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208 runTest(MemSwap, _L("Memory swap"), ETrue, srcAlign, ETrue, 0); |
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209 } |
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210 break; |
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211 case ELengthTests: |
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212 test.Printf(_L("Running length benchmarks (may take a long time)\n")); |
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213 runTest(MemFill, _L("Fill length cached"), EFalse, EFalse, EFalse, 1); |
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214 runTest(MemFillUncached, _L("Fill length uncached"), EFalse, EFalse, EFalse, 1); |
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215 runTest(MemCopy, _L("Copy length cached"), EFalse, EFalse, EFalse, 1); |
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216 runTest(MemCopyUncached, _L("Copy length uncached"), EFalse, EFalse, EFalse, 1); |
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217 runTest(WordMove, _L("Word move length cached"), EFalse, EFalse, EFalse, 4); |
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218 runTest(WordMoveUncached,_L("Word move length uncached"), EFalse, EFalse, EFalse, 4); |
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219 break; |
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220 default: |
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221 test(EFalse); |
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222 break; |
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223 } |
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224 |
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225 test.End(); |
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226 return(KErrNone); |
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227 } |