1 | /* $Id: Performance.cpp 11180 2008-08-06 15:34:11Z vboxsync $ */
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2 |
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3 | /** @file
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4 | *
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5 | * VBox Performance Classes implementation.
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6 | */
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7 |
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8 | /*
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9 | * Copyright (C) 2008 Sun Microsystems, Inc.
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10 | *
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11 | * This file is part of VirtualBox Open Source Edition (OSE), as
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12 | * available from http://www.virtualbox.org. This file is free software;
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13 | * you can redistribute it and/or modify it under the terms of the GNU
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14 | * General Public License (GPL) as published by the Free Software
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15 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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16 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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17 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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18 | *
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19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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20 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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21 | * additional information or have any questions.
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22 | */
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23 |
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24 | /*
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25 | * @todo list:
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26 | *
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27 | * 1) Solaris backend
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28 | * 2) Linux backend
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29 | * 3) Detection of erroneous metric names
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30 | * 4) Min/max ranges for metrics
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31 | * 5) Darwin backend
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32 | * 6) [OS/2 backend]
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33 | */
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34 |
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35 | #include <VBox/com/array.h>
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36 | #include <VBox/com/ptr.h>
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37 | #include <VBox/com/string.h>
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38 | #include <VBox/err.h>
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39 | #include <iprt/string.h>
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40 | #include <iprt/mem.h>
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41 |
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42 | #include "Logging.h"
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43 | #include "Performance.h"
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44 |
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45 | using namespace pm;
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46 |
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47 | // Default factory
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48 |
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49 | BaseMetric *MetricFactory::createHostCpuLoad(ComPtr<IUnknown> object, SubMetric *user, SubMetric *kernel, SubMetric *idle)
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50 | {
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51 | Assert(mHAL);
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52 | return new HostCpuLoadRaw(mHAL, object, user, kernel, idle);
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53 | }
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54 | BaseMetric *MetricFactory::createHostCpuMHz(ComPtr<IUnknown> object, SubMetric *mhz)
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55 | {
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56 | Assert(mHAL);
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57 | return new HostCpuMhz(mHAL, object, mhz);
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58 | }
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59 | BaseMetric *MetricFactory::createHostRamUsage(ComPtr<IUnknown> object, SubMetric *total, SubMetric *used, SubMetric *available)
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60 | {
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61 | Assert(mHAL);
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62 | return new HostRamUsage(mHAL, object, total, used, available);
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63 | }
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64 | BaseMetric *MetricFactory::createMachineCpuLoad(ComPtr<IUnknown> object, RTPROCESS process, SubMetric *user, SubMetric *kernel)
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65 | {
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66 | Assert(mHAL);
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67 | return new MachineCpuLoadRaw(mHAL, object, process, user, kernel);
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68 | }
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69 | BaseMetric *MetricFactory::createMachineRamUsage(ComPtr<IUnknown> object, RTPROCESS process, SubMetric *used)
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70 | {
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71 | Assert(mHAL);
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72 | return new MachineRamUsage(mHAL, object, process, used);
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73 | }
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74 |
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75 | // Stubs for non-pure virtual methods
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76 |
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77 | int CollectorHAL::getHostCpuLoad(ULONG *user, ULONG *kernel, ULONG *idle)
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78 | {
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79 | return E_NOTIMPL;
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80 | }
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81 |
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82 | int CollectorHAL::getProcessCpuLoad(RTPROCESS process, ULONG *user, ULONG *kernel)
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83 | {
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84 | return E_NOTIMPL;
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85 | }
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86 |
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87 | int CollectorHAL::getRawHostCpuLoad(uint64_t *user, uint64_t *kernel, uint64_t *idle)
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88 | {
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89 | return E_NOTIMPL;
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90 | }
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91 |
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92 | int CollectorHAL::getRawProcessCpuLoad(RTPROCESS process, uint64_t *user, uint64_t *kernel, uint64_t *total)
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93 | {
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94 | return E_NOTIMPL;
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95 | }
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96 |
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97 | void BaseMetric::collectorBeat(uint64_t nowAt)
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98 | {
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99 | if (isEnabled())
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100 | {
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101 | if (nowAt - mLastSampleTaken >= mPeriod * 1000)
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102 | {
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103 | mLastSampleTaken = nowAt;
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104 | LogFlowThisFunc (("Collecting data for obj(%p)...\n", (void *)mObject));
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105 | collect();
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106 | }
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107 | }
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108 | }
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109 |
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110 | /*bool BaseMetric::associatedWith(ComPtr<IUnknown> object)
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111 | {
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112 | LogFlowThisFunc (("mObject(%p) == object(%p) is %s.\n", mObject, object, mObject == object ? "true" : "false"));
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113 | return mObject == object;
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114 | }*/
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115 |
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116 | void HostCpuLoad::init(ULONG period, ULONG length)
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117 | {
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118 | mPeriod = period;
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119 | mLength = length;
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120 | mUser->init(mLength);
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121 | mKernel->init(mLength);
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122 | mIdle->init(mLength);
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123 | }
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124 |
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125 | void HostCpuLoad::collect()
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126 | {
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127 | ULONG user, kernel, idle;
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128 | int rc = mHAL->getHostCpuLoad(&user, &kernel, &idle);
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129 | if (RT_SUCCESS(rc))
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130 | {
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131 | mUser->put(user);
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132 | mKernel->put(kernel);
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133 | mIdle->put(idle);
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134 | }
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135 | }
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136 |
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137 | void HostCpuLoadRaw::collect()
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138 | {
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139 | uint64_t user, kernel, idle;
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140 | uint64_t userDiff, kernelDiff, idleDiff, totalDiff;
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141 |
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142 | int rc = mHAL->getRawHostCpuLoad(&user, &kernel, &idle);
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143 | if (RT_SUCCESS(rc))
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144 | {
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145 | userDiff = user - mUserPrev;
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146 | kernelDiff = kernel - mKernelPrev;
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147 | idleDiff = idle - mIdlePrev;
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148 | totalDiff = userDiff + kernelDiff + idleDiff;
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149 |
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150 | if (totalDiff == 0)
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151 | {
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152 | /* This is only possible if none of counters has changed! */
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153 | LogFlowThisFunc (("Impossible! User, kernel and idle raw "
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154 | "counters has not changed since last sample.\n" ));
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155 | mUser->put(0);
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156 | mKernel->put(0);
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157 | mIdle->put(0);
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158 | }
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159 | else
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160 | {
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161 | mUser->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * userDiff / totalDiff));
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162 | mKernel->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * kernelDiff / totalDiff));
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163 | mIdle->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * idleDiff / totalDiff));
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164 | }
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165 |
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166 | mUserPrev = user;
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167 | mKernelPrev = kernel;
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168 | mIdlePrev = idle;
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169 | }
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170 | }
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171 |
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172 | void HostCpuMhz::init(ULONG period, ULONG length)
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173 | {
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174 | mPeriod = period;
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175 | mLength = length;
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176 | mMHz->init(mLength);
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177 | }
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178 |
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179 | void HostCpuMhz::collect()
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180 | {
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181 | ULONG mhz;
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182 | int rc = mHAL->getHostCpuMHz(&mhz);
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183 | if (RT_SUCCESS(rc))
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184 | mMHz->put(mhz);
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185 | }
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186 |
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187 | void HostRamUsage::init(ULONG period, ULONG length)
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188 | {
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189 | mPeriod = period;
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190 | mLength = length;
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191 | mTotal->init(mLength);
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192 | mUsed->init(mLength);
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193 | mAvailable->init(mLength);
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194 | }
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195 |
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196 | void HostRamUsage::collect()
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197 | {
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198 | ULONG total, used, available;
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199 | int rc = mHAL->getHostMemoryUsage(&total, &used, &available);
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200 | if (RT_SUCCESS(rc))
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201 | {
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202 | mTotal->put(total);
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203 | mUsed->put(used);
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204 | mAvailable->put(available);
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205 | }
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206 | }
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207 |
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208 |
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209 |
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210 | void MachineCpuLoad::init(ULONG period, ULONG length)
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211 | {
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212 | mPeriod = period;
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213 | mLength = length;
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214 | mUser->init(mLength);
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215 | mKernel->init(mLength);
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216 | }
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217 |
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218 | void MachineCpuLoad::collect()
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219 | {
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220 | ULONG user, kernel;
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221 | int rc = mHAL->getProcessCpuLoad(mProcess, &user, &kernel);
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222 | if (RT_SUCCESS(rc))
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223 | {
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224 | mUser->put(user);
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225 | mKernel->put(kernel);
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226 | }
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227 | }
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228 |
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229 | void MachineCpuLoadRaw::collect()
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230 | {
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231 | uint64_t processUser, processKernel, hostTotal;
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232 |
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233 | int rc = mHAL->getRawProcessCpuLoad(mProcess, &processUser, &processKernel, &hostTotal);
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234 | if (RT_SUCCESS(rc))
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235 | {
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236 | if (hostTotal == mHostTotalPrev)
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237 | {
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238 | /* Nearly impossible, but... */
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239 | mUser->put(0);
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240 | mKernel->put(0);
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241 | }
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242 | else
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243 | {
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244 | mUser->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * (processUser - mProcessUserPrev) / (hostTotal - mHostTotalPrev)));
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245 | mKernel->put((ULONG)(PM_CPU_LOAD_MULTIPLIER * (processKernel - mProcessKernelPrev ) / (hostTotal - mHostTotalPrev)));
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246 | }
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247 |
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248 | mHostTotalPrev = hostTotal;
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249 | mProcessUserPrev = processUser;
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250 | mProcessKernelPrev = processKernel;
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251 | }
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252 | }
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253 |
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254 | void MachineRamUsage::init(ULONG period, ULONG length)
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255 | {
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256 | mPeriod = period;
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257 | mLength = length;
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258 | mUsed->init(mLength);
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259 | }
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260 |
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261 | void MachineRamUsage::collect()
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262 | {
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263 | ULONG used;
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264 | int rc = mHAL->getProcessMemoryUsage(mProcess, &used);
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265 | if (RT_SUCCESS(rc))
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266 | mUsed->put(used);
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267 | }
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268 |
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269 | void CircularBuffer::init(ULONG length)
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270 | {
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271 | if (mData)
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272 | RTMemFree(mData);
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273 | mLength = length;
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274 | mData = (ULONG *)RTMemAllocZ(length * sizeof(ULONG));
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275 | mWrapped = false;
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276 | mEnd = 0;
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277 | }
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278 |
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279 | ULONG CircularBuffer::length()
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280 | {
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281 | return mWrapped ? mLength : mEnd;
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282 | }
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283 |
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284 | void CircularBuffer::put(ULONG value)
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285 | {
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286 | if (mData)
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287 | {
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288 | mData[mEnd++] = value;
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289 | if (mEnd >= mLength)
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290 | {
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291 | mEnd = 0;
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292 | mWrapped = true;
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293 | }
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294 | }
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295 | }
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296 |
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297 | void CircularBuffer::copyTo(ULONG *data)
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298 | {
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299 | if (mWrapped)
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300 | {
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301 | memcpy(data, mData + mEnd, (mLength - mEnd) * sizeof(ULONG));
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302 | // Copy the wrapped part
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303 | if (mEnd)
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304 | memcpy(data + (mLength - mEnd), mData, mEnd * sizeof(ULONG));
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305 | }
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306 | else
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307 | memcpy(data, mData, mEnd * sizeof(ULONG));
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308 | }
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309 |
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310 | void SubMetric::query(ULONG *data)
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311 | {
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312 | copyTo(data);
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313 | }
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314 |
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315 | void Metric::query(ULONG **data, ULONG *count)
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316 | {
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317 | ULONG length;
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318 | ULONG *tmpData;
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319 |
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320 | length = mSubMetric->length();
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321 | if (length)
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322 | {
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323 | tmpData = (ULONG*)RTMemAlloc(sizeof(*tmpData)*length);
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324 | mSubMetric->query(tmpData);
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325 | if (mAggregate)
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326 | {
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327 | *count = 1;
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328 | *data = (ULONG*)RTMemAlloc(sizeof(**data));
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329 | **data = mAggregate->compute(tmpData, length);
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330 | RTMemFree(tmpData);
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331 | }
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332 | else
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333 | {
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334 | *count = length;
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335 | *data = tmpData;
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336 | }
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337 | }
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338 | else
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339 | {
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340 | *count = 0;
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341 | *data = 0;
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342 | }
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343 | }
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344 |
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345 | ULONG AggregateAvg::compute(ULONG *data, ULONG length)
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346 | {
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347 | uint64_t tmp = 0;
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348 | for (ULONG i = 0; i < length; ++i)
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349 | tmp += data[i];
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350 | return (ULONG)(tmp / length);
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351 | }
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352 |
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353 | const char * AggregateAvg::getName()
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354 | {
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355 | return "avg";
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356 | }
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357 |
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358 | ULONG AggregateMin::compute(ULONG *data, ULONG length)
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359 | {
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360 | ULONG tmp = *data;
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361 | for (ULONG i = 0; i < length; ++i)
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362 | if (data[i] < tmp)
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363 | tmp = data[i];
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364 | return tmp;
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365 | }
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366 |
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367 | const char * AggregateMin::getName()
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368 | {
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369 | return "min";
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370 | }
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371 |
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372 | ULONG AggregateMax::compute(ULONG *data, ULONG length)
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373 | {
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374 | ULONG tmp = *data;
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375 | for (ULONG i = 0; i < length; ++i)
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376 | if (data[i] > tmp)
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377 | tmp = data[i];
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378 | return tmp;
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379 | }
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380 |
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381 | const char * AggregateMax::getName()
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382 | {
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383 | return "max";
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384 | }
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385 |
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386 | Filter::Filter(ComSafeArrayIn(INPTR BSTR, metricNames),
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387 | ComSafeArrayIn(IUnknown *, objects))
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388 | {
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389 | com::SafeIfaceArray <IUnknown> objectArray(ComSafeArrayInArg(objects));
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390 | com::SafeArray <INPTR BSTR> nameArray(ComSafeArrayInArg(metricNames));
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391 | if (objectArray.isNull())
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392 | {
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393 | if (nameArray.size())
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394 | {
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395 | for (size_t i = 0; i < nameArray.size(); ++i)
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396 | processMetricList(std::string(com::Utf8Str(nameArray[i])), ComPtr<IUnknown>());
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397 | }
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398 | else
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399 | processMetricList(std::string("*"), ComPtr<IUnknown>());
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400 | }
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401 | else
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402 | {
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403 | for (size_t i = 0; i < objectArray.size(); ++i)
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404 | switch (nameArray.size())
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405 | {
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406 | case 0:
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407 | processMetricList(std::string("*"), objectArray[i]);
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408 | break;
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409 | case 1:
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410 | processMetricList(std::string(com::Utf8Str(nameArray[0])), objectArray[i]);
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411 | break;
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412 | default:
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413 | processMetricList(std::string(com::Utf8Str(nameArray[i])), objectArray[i]);
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414 | break;
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415 | }
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416 | }
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417 | }
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418 |
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419 | void Filter::processMetricList(const std::string &name, const ComPtr<IUnknown> object)
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420 | {
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421 | std::string::size_type startPos = 0;
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422 |
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423 | for (std::string::size_type pos = name.find(",");
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424 | pos != std::string::npos;
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425 | pos = name.find(",", startPos))
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426 | {
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427 | mElements.push_back(std::make_pair(object, name.substr(startPos, pos - startPos)));
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428 | startPos = pos + 1;
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429 | }
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430 | mElements.push_back(std::make_pair(object, name.substr(startPos)));
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431 | }
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432 |
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433 | bool Filter::match(const ComPtr<IUnknown> object, const std::string &name) const
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434 | {
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435 | ElementList::const_iterator it;
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436 |
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437 | printf("Filter::match(%p, %s)\n", static_cast<const IUnknown*> (object), name.c_str());
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438 | for (it = mElements.begin(); it != mElements.end(); it++)
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439 | {
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440 | printf("...matching against(%p, %s)\n", static_cast<const IUnknown*> ((*it).first), (*it).second.c_str());
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441 | if ((*it).first.isNull() || (*it).first == object)
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442 | {
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443 | // Objects match, compare names
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444 | if ((*it).second == "*" || (*it).second == name)
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445 | {
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446 | printf("...found!\n");
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447 | return true;
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448 | }
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449 | }
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450 | }
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451 | printf("...no matches!\n");
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452 | return false;
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453 | }
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