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1 // Copyright (c) 2002-2009 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 // |
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15 |
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16 #include <e32test.h> |
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17 #include <e32msgqueue.h> |
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18 |
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19 #include "bm_suite.h" |
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20 |
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21 class Sync : public BMProgram |
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22 { |
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23 public : |
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24 Sync() : BMProgram(_L("Synchronization Primitives")) |
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25 {} |
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26 virtual TBMResult* Run(TBMUInt64 aIter, TInt* aCount); |
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27 |
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28 typedef void (*MeasurementFunc)(TBMResult*, TBMUInt64 aIter, TBool aRemote); |
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29 struct Measurement |
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30 { |
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31 MeasurementFunc iFunc; |
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32 TPtrC iName; |
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33 TBool iRemote; |
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34 |
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35 Measurement(MeasurementFunc aFunc, const TDesC& aName, TBool aRemote = EFalse) : |
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36 iFunc(aFunc), iName(aName), iRemote(aRemote) {} |
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37 }; |
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38 |
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39 static TBMResult iResults[]; |
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40 static Measurement iMeasurements[]; |
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41 |
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42 static void MutexPassing(TBMResult*, TBMUInt64 aIter, TBool aRemote); |
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43 static void MutexContentionParent(TBMResult* aResult, TBMUInt64 aIter, TBool aRemote); |
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44 static TInt MutexContentionChild(TAny*); |
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45 static void SemaphoreLatencyParent(TBMResult* aResult, TBMUInt64 aIter, TBool aRemote); |
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46 static TInt SemaphoreLatencyChild(TAny*); |
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47 static void ThreadSemaphoreLatencyParent(TBMResult* aResult, TBMUInt64 aIter, TBool aRemote); |
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48 static TInt ThreadSemaphoreLatencyChild(TAny*); |
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49 }; |
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50 |
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51 Sync::Measurement Sync::iMeasurements[] = |
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52 { |
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53 Measurement(&Sync::MutexPassing, _L("Mutex Passing Case")), |
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54 Measurement(&Sync::MutexContentionParent, _L("Local Mutex Contention")), |
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55 Measurement(&Sync::MutexContentionParent, _L("Remote Mutex Contention"), ETrue), |
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56 Measurement(&Sync::SemaphoreLatencyParent, _L("Local Semaphore Latency")), |
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57 Measurement(&Sync::SemaphoreLatencyParent, _L("Remote Semaphore Latency"), ETrue), |
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58 Measurement(&Sync::ThreadSemaphoreLatencyParent, _L("Local Thread Semaphore Latency")), |
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59 }; |
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60 TBMResult Sync::iResults[sizeof(Sync::iMeasurements)/sizeof(Sync::iMeasurements[0])]; |
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61 |
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62 static Sync sync; |
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63 |
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64 void Sync::MutexPassing(TBMResult* aResult, TBMUInt64 aIter, TBool) |
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65 { |
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66 RMutex mutex; |
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67 mutex.CreateLocal(); |
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68 |
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69 TBMTimeInterval ti; |
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70 ti.Begin(); |
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71 for (TBMUInt64 i = 0; i < aIter; ++i) |
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72 { |
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73 mutex.Wait(); |
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74 mutex.Signal(); |
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75 } |
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76 TBMTicks t = ti.End(); |
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77 |
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78 mutex.Close(); |
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79 |
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80 aResult->Cumulate(t, aIter); |
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81 } |
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82 |
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83 class MutexContentionArgs : public TBMSpawnArgs |
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84 { |
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85 public: |
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86 |
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87 RMutex iMutexA; |
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88 RMutex iMutexB; |
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89 RSemaphore iSem; |
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90 TBMUInt64 iIterationCount; |
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91 |
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92 MutexContentionArgs(TInt aRemote, TBMUInt64 aIter); |
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93 |
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94 void ChildOpen(); |
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95 void ChildClose(); |
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96 |
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97 void Close(); |
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98 }; |
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99 |
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100 MutexContentionArgs::MutexContentionArgs(TInt aRemote, TBMUInt64 aIter) : |
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101 TBMSpawnArgs(Sync::MutexContentionChild, KBMPriorityLow, aRemote, sizeof(*this)), |
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102 iIterationCount(aIter) |
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103 { |
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104 TInt r; |
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105 if (aRemote) |
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106 { |
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107 r = iMutexA.CreateGlobal(_L("MutexA")); |
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108 BM_ERROR(r, r == KErrNone); |
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109 r = iMutexB.CreateGlobal(_L("MutexB")); |
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110 BM_ERROR(r, r == KErrNone); |
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111 r = iSem.CreateGlobal(_L("Semaphore"), 0); |
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112 BM_ERROR(r, r == KErrNone); |
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113 } |
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114 else |
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115 { |
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116 r = iMutexA.CreateLocal(); |
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117 BM_ERROR(r, r == KErrNone); |
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118 r = iMutexB.CreateLocal(); |
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119 BM_ERROR(r, r == KErrNone); |
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120 r = iSem.CreateLocal(0); |
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121 BM_ERROR(r, r == KErrNone); |
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122 } |
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123 } |
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124 |
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125 void MutexContentionArgs::ChildOpen() |
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126 { |
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127 if (iRemote) |
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128 { |
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129 iMutexA.Duplicate(iParent); |
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130 iMutexB.Duplicate(iParent); |
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131 iSem.Duplicate(iParent); |
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132 } |
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133 } |
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134 |
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135 void MutexContentionArgs::ChildClose() |
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136 { |
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137 if (iRemote) |
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138 { |
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139 iMutexA.Close(); |
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140 iMutexB.Close(); |
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141 iSem.Close(); |
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142 } |
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143 } |
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144 |
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145 void MutexContentionArgs::Close() |
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146 { |
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147 iMutexA.Close(); |
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148 iMutexB.Close(); |
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149 iSem.Close(); |
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150 } |
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151 |
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152 void Sync::MutexContentionParent(TBMResult* aResult, TBMUInt64 aIter, TBool aRemote) |
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153 { |
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154 MutexContentionArgs mc(aRemote, aIter); |
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155 |
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156 MBMChild* child = sync.SpawnChild(&mc); |
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157 |
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158 mc.iSem.Wait(); |
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159 |
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160 TBMTimeInterval ti; |
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161 ti.Begin(); |
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162 for (TBMUInt64 i = 0; i < aIter; ++i) |
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163 { |
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164 mc.iMutexA.Wait(); |
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165 mc.iMutexA.Signal(); |
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166 mc.iMutexB.Wait(); |
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167 mc.iMutexB.Signal(); |
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168 } |
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169 TBMTicks t = ti.End(); |
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170 |
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171 child->WaitChildExit(); |
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172 mc.Close(); |
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173 |
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174 aResult->Cumulate(t/2, aIter); |
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175 } |
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176 |
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177 TInt Sync::MutexContentionChild(TAny* ptr) |
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178 { |
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179 MutexContentionArgs* mc = (MutexContentionArgs*) ptr; |
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180 mc->ChildOpen(); |
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181 |
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182 mc->iMutexA.Wait(); |
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183 mc->iSem.Signal(); |
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184 for (TBMUInt64 i = 0; i < mc->iIterationCount; ++i) |
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185 { |
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186 mc->iMutexB.Wait(); |
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187 mc->iMutexA.Signal(); |
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188 mc->iMutexA.Wait(); |
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189 mc->iMutexB.Signal(); |
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190 } |
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191 mc->iMutexA.Signal(); |
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192 |
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193 mc->ChildClose(); |
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194 return KErrNone; |
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195 } |
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196 |
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197 class SemaphoreLatencyArgs : public TBMSpawnArgs |
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198 { |
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199 public: |
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200 |
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201 RSemaphore iSem; |
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202 TBMUInt64 iIterationCount; |
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203 RMsgQueue<TBMTicks> iSignalTimeQue; |
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204 |
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205 SemaphoreLatencyArgs(TInt aRemote, TBMUInt64 aIter); |
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206 |
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207 void ChildOpen(); |
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208 void ChildClose(); |
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209 |
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210 TBMTicks SignalTime(); |
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211 void ChildSignalTime(TBMTicks); |
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212 |
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213 void Close(); |
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214 }; |
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215 |
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216 SemaphoreLatencyArgs::SemaphoreLatencyArgs(TInt aRemote, TBMUInt64 aIter) : |
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217 TBMSpawnArgs(Sync::SemaphoreLatencyChild, KBMPriorityLow, aRemote, sizeof(*this)), |
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218 iIterationCount(aIter) |
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219 { |
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220 TInt r; |
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221 if (aRemote) |
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222 { |
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223 r = iSem.CreateGlobal(_L("BM Semaphore"), 0); |
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224 BM_ERROR(r, r == KErrNone); |
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225 } |
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226 else |
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227 { |
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228 r = iSem.CreateLocal(0); |
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229 BM_ERROR(r, r == KErrNone); |
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230 } |
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231 r = iSignalTimeQue.CreateGlobal(_L("BM Queue"), 1); |
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232 BM_ERROR(r, r == KErrNone); |
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233 } |
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234 |
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235 void SemaphoreLatencyArgs::ChildOpen() |
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236 { |
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237 if (iRemote) |
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238 { |
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239 iSem.Duplicate(iParent); |
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240 TInt r = iSignalTimeQue.OpenGlobal(_L("BM Queue")); |
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241 BM_ERROR(r, r == KErrNone); |
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242 } |
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243 } |
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244 |
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245 void SemaphoreLatencyArgs::ChildSignalTime(TBMTicks aTime) |
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246 { |
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247 TInt r = iSignalTimeQue.Send(aTime); |
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248 BM_ERROR(r, r == KErrNone); |
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249 } |
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250 |
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251 TBMTicks SemaphoreLatencyArgs::SignalTime() |
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252 { |
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253 TBMTicks time; |
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254 iSignalTimeQue.ReceiveBlocking(time); |
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255 return time; |
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256 } |
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257 |
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258 void SemaphoreLatencyArgs::ChildClose() |
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259 { |
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260 if (iRemote) |
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261 { |
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262 iSem.Close(); |
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263 iSignalTimeQue.Close(); |
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264 } |
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265 } |
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266 |
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267 void SemaphoreLatencyArgs::Close() |
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268 { |
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269 iSem.Close(); |
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270 iSignalTimeQue.Close(); |
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271 } |
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272 |
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273 void Sync::SemaphoreLatencyParent(TBMResult* aResult, TBMUInt64 aIter, TBool aRemote) |
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274 { |
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275 SemaphoreLatencyArgs sl(aRemote, aIter); |
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276 MBMChild* child = sync.SpawnChild(&sl); |
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277 for (TBMUInt64 i = 0; i < aIter; ++i) |
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278 { |
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279 sl.iSem.Wait(); |
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280 TBMTicks now; |
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281 ::bmTimer.Stamp(&now); |
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282 aResult->Cumulate(TBMTicksDelta(sl.SignalTime(), now)); |
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283 } |
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284 child->WaitChildExit(); |
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285 sl.Close(); |
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286 } |
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287 |
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288 TInt Sync::SemaphoreLatencyChild(TAny* ptr) |
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289 { |
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290 SemaphoreLatencyArgs* sl = (SemaphoreLatencyArgs*) ptr; |
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291 sl->ChildOpen(); |
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292 for (TBMUInt64 i = 0; i < sl->iIterationCount; ++i) |
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293 { |
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294 TBMTicks sigTime; |
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295 ::bmTimer.Stamp(&sigTime); |
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296 sl->iSem.Signal(); |
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297 sl->ChildSignalTime(sigTime); |
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298 } |
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299 sl->ChildClose(); |
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300 return KErrNone; |
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301 } |
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302 |
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303 class ThreadSemaphoreLatencyArgs : public TBMSpawnArgs |
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304 { |
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305 public: |
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306 |
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307 TBMUInt64 iIterationCount; |
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308 TBMTicks iSignalTime; |
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309 TRequestStatus iStatus; |
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310 TRequestStatus* iStatusPtr; |
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311 RMsgQueue<TBMTicks> iSignalTimeQue; |
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312 |
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313 ThreadSemaphoreLatencyArgs(TInt aRemote, TBMUInt64 aIter); |
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314 |
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315 void ChildOpen(); |
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316 void ChildClose(); |
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317 |
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318 TBMTicks SignalTime(); |
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319 void ChildSignalTime(TBMTicks); |
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320 |
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321 void Close(); |
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322 }; |
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323 |
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324 ThreadSemaphoreLatencyArgs::ThreadSemaphoreLatencyArgs(TInt aRemote, TBMUInt64 aIter) : |
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325 TBMSpawnArgs(Sync::ThreadSemaphoreLatencyChild, KBMPriorityLow, aRemote, sizeof(*this)), |
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326 iIterationCount(aIter), |
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327 iStatusPtr(&iStatus) |
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328 |
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329 { |
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330 TInt r = iSignalTimeQue.CreateGlobal(_L("BM Queue"), 1); |
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331 BM_ERROR(r, r == KErrNone); |
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332 } |
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333 |
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334 void ThreadSemaphoreLatencyArgs::ChildOpen() |
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335 { |
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336 if (iRemote) |
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337 { |
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338 TInt r = iSignalTimeQue.OpenGlobal(_L("BM Queue")); |
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339 BM_ERROR(r, r == KErrNone); |
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340 } |
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341 } |
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342 |
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343 void ThreadSemaphoreLatencyArgs::ChildSignalTime(TBMTicks aTime) |
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344 { |
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345 TInt r = iSignalTimeQue.Send(aTime); |
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346 BM_ERROR(r, r == KErrNone); |
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347 } |
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348 |
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349 TBMTicks ThreadSemaphoreLatencyArgs::SignalTime() |
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350 { |
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351 TBMTicks time; |
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352 iSignalTimeQue.ReceiveBlocking(time); |
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353 return time; |
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354 } |
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355 |
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356 void ThreadSemaphoreLatencyArgs::ChildClose() |
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357 { |
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358 if (iRemote) |
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359 { |
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360 iSignalTimeQue.Close(); |
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361 } |
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362 } |
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363 |
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364 void ThreadSemaphoreLatencyArgs::Close() |
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365 { |
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366 iSignalTimeQue.Close(); |
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367 } |
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368 |
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369 void Sync::ThreadSemaphoreLatencyParent(TBMResult* aResult, TBMUInt64 aIter, TBool aRemote) |
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370 { |
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371 ThreadSemaphoreLatencyArgs sl(aRemote, aIter); |
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372 MBMChild* child = sync.SpawnChild(&sl); |
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373 for (TBMUInt64 i = 0; i < aIter; ++i) |
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374 { |
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375 sl.iStatus = KRequestPending; |
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376 User::WaitForRequest(sl.iStatus); |
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377 BM_ASSERT(sl.iStatus == KErrNone); |
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378 TBMTicks now; |
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379 ::bmTimer.Stamp(&now); |
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380 aResult->Cumulate(TBMTicksDelta(sl.SignalTime(), now)); |
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381 } |
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382 child->WaitChildExit(); |
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383 sl.Close(); |
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384 } |
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385 |
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386 TInt Sync::ThreadSemaphoreLatencyChild(TAny* ptr) |
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387 { |
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388 ThreadSemaphoreLatencyArgs* sl = (ThreadSemaphoreLatencyArgs*) ptr; |
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389 sl->ChildOpen(); |
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390 for (TBMUInt64 i = 0; i < sl->iIterationCount; ++i) |
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391 { |
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392 TRequestStatus* sptr = sl->iStatusPtr; |
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393 TBMTicks sigTime; |
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394 ::bmTimer.Stamp(&sigTime); |
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395 sl->iParent.RequestComplete(sptr, KErrNone); |
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396 sl->ChildSignalTime(sigTime); |
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397 } |
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398 sl->ChildClose(); |
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399 return KErrNone; |
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400 } |
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401 |
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402 |
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403 TBMResult* Sync::Run(TBMUInt64 aIter, TInt* aCount) |
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404 { |
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405 TInt count = sizeof(iResults)/sizeof(iResults[0]); |
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406 |
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407 for (TInt i = 0; i < count; ++i) |
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408 { |
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409 iResults[i].Reset(iMeasurements[i].iName); |
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410 iMeasurements[i].iFunc(&iResults[i], aIter, iMeasurements[i].iRemote); |
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411 iResults[i].Update(); |
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412 } |
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413 |
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414 *aCount = count; |
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415 return iResults; |
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416 } |
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417 |
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418 void AddSync() |
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419 { |
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420 BMProgram* next = bmSuite; |
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421 bmSuite=(BMProgram*)&sync; |
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422 bmSuite->Next()=next; |
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423 } |