| 1 | /* This file is part of the Linux Trace Toolkit viewer |
| 2 | * Copyright (C) 2009 Benjamin Poirier <benjamin.poirier@polymtl.ca> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License Version 2 as |
| 6 | * published by the Free Software Foundation; |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program; if not, write to the Free Software |
| 15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 16 | * MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #ifdef HAVE_CONFIG_H |
| 20 | #include <config.h> |
| 21 | #endif |
| 22 | |
| 23 | #include <stdlib.h> |
| 24 | |
| 25 | #include "sync_chain_lttv.h" |
| 26 | |
| 27 | #include "event_analysis_eval.h" |
| 28 | |
| 29 | |
| 30 | // Functions common to all analysis modules |
| 31 | static void initAnalysisEval(SyncState* const syncState); |
| 32 | static void destroyAnalysisEval(SyncState* const syncState); |
| 33 | |
| 34 | static void analyzeMessageEval(SyncState* const syncState, Message* const |
| 35 | message); |
| 36 | static void analyzeExchangeEval(SyncState* const syncState, Exchange* const |
| 37 | exchange); |
| 38 | static void analyzeBroadcastEval(SyncState* const syncState, Broadcast* const |
| 39 | broadcast); |
| 40 | static GArray* finalizeAnalysisEval(SyncState* const syncState); |
| 41 | static void printAnalysisStatsEval(SyncState* const syncState); |
| 42 | |
| 43 | // Functions specific to this module |
| 44 | static void registerAnalysisEval() __attribute__((constructor (102))); |
| 45 | |
| 46 | |
| 47 | static AnalysisModule analysisModuleEval= { |
| 48 | .name= "eval", |
| 49 | .initAnalysis= &initAnalysisEval, |
| 50 | .destroyAnalysis= &destroyAnalysisEval, |
| 51 | .analyzeMessage= &analyzeMessageEval, |
| 52 | .analyzeExchange= &analyzeExchangeEval, |
| 53 | .analyzeBroadcast= &analyzeBroadcastEval, |
| 54 | .finalizeAnalysis= &finalizeAnalysisEval, |
| 55 | .printAnalysisStats= &printAnalysisStatsEval, |
| 56 | .writeAnalysisGraphsPlots= NULL, |
| 57 | .writeAnalysisGraphsOptions= NULL, |
| 58 | }; |
| 59 | |
| 60 | |
| 61 | /* |
| 62 | * Analysis module registering function |
| 63 | */ |
| 64 | static void registerAnalysisEval() |
| 65 | { |
| 66 | g_queue_push_tail(&analysisModules, &analysisModuleEval); |
| 67 | } |
| 68 | |
| 69 | |
| 70 | /* |
| 71 | * Analysis init function |
| 72 | * |
| 73 | * This function is called at the beginning of a synchronization run for a set |
| 74 | * of traces. |
| 75 | * |
| 76 | * Args: |
| 77 | * syncState container for synchronization data. |
| 78 | */ |
| 79 | static void initAnalysisEval(SyncState* const syncState) |
| 80 | { |
| 81 | AnalysisDataEval* analysisData; |
| 82 | unsigned int i; |
| 83 | |
| 84 | analysisData= malloc(sizeof(AnalysisDataEval)); |
| 85 | syncState->analysisData= analysisData; |
| 86 | |
| 87 | //readRttInfo(&analysisData->rttInfo, optionEvalRttFile); |
| 88 | |
| 89 | if (syncState->stats) |
| 90 | { |
| 91 | analysisData->stats= malloc(sizeof(AnalysisStatsEval)); |
| 92 | analysisData->stats->broadcastDiffSum= 0.; |
| 93 | |
| 94 | analysisData->stats->allStats= malloc(syncState->traceNb * |
| 95 | sizeof(TracePairStats*)); |
| 96 | for (i= 0; i < syncState->traceNb; i++) |
| 97 | { |
| 98 | analysisData->stats->allStats[i]= calloc(syncState->traceNb, |
| 99 | sizeof(TracePairStats)); |
| 100 | } |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | |
| 105 | /* |
| 106 | * Analysis destroy function |
| 107 | * |
| 108 | * Free the analysis specific data structures |
| 109 | * |
| 110 | * Args: |
| 111 | * syncState container for synchronization data. |
| 112 | */ |
| 113 | static void destroyAnalysisEval(SyncState* const syncState) |
| 114 | { |
| 115 | unsigned int i; |
| 116 | AnalysisDataEval* analysisData; |
| 117 | |
| 118 | analysisData= (AnalysisDataEval*) syncState->analysisData; |
| 119 | |
| 120 | if (analysisData == NULL || analysisData->rttInfo == NULL) |
| 121 | { |
| 122 | return; |
| 123 | } |
| 124 | |
| 125 | //g_hash_table_destroy(analysisData->rttInfo); |
| 126 | analysisData->rttInfo= NULL; |
| 127 | |
| 128 | if (syncState->stats) |
| 129 | { |
| 130 | for (i= 0; i < syncState->traceNb; i++) |
| 131 | { |
| 132 | free(analysisData->stats->allStats[i]); |
| 133 | } |
| 134 | free(analysisData->stats->allStats); |
| 135 | free(analysisData->stats); |
| 136 | } |
| 137 | |
| 138 | free(syncState->analysisData); |
| 139 | syncState->analysisData= NULL; |
| 140 | } |
| 141 | |
| 142 | |
| 143 | /* |
| 144 | * Perform analysis on an event pair. |
| 145 | * |
| 146 | * Args: |
| 147 | * syncState container for synchronization data |
| 148 | * message structure containing the events |
| 149 | */ |
| 150 | static void analyzeMessageEval(SyncState* const syncState, Message* const message) |
| 151 | { |
| 152 | AnalysisDataEval* analysisData; |
| 153 | |
| 154 | analysisData= (AnalysisDataEval*) syncState->analysisData; |
| 155 | } |
| 156 | |
| 157 | |
| 158 | /* |
| 159 | * Perform analysis on multiple messages |
| 160 | * |
| 161 | * Args: |
| 162 | * syncState container for synchronization data |
| 163 | * exchange structure containing the messages |
| 164 | */ |
| 165 | static void analyzeExchangeEval(SyncState* const syncState, Exchange* const exchange) |
| 166 | { |
| 167 | AnalysisDataEval* analysisData; |
| 168 | |
| 169 | analysisData= (AnalysisDataEval*) syncState->analysisData; |
| 170 | } |
| 171 | |
| 172 | |
| 173 | /* |
| 174 | * Perform analysis on muliple events |
| 175 | * |
| 176 | * Args: |
| 177 | * syncState container for synchronization data |
| 178 | * broadcast structure containing the events |
| 179 | */ |
| 180 | static void analyzeBroadcastEval(SyncState* const syncState, Broadcast* const broadcast) |
| 181 | { |
| 182 | AnalysisDataEval* analysisData; |
| 183 | |
| 184 | analysisData= (AnalysisDataEval*) syncState->analysisData; |
| 185 | } |
| 186 | |
| 187 | |
| 188 | /* |
| 189 | * Finalize the factor calculations |
| 190 | * |
| 191 | * Since this module does not really calculate factors, identity factors are |
| 192 | * returned. |
| 193 | * |
| 194 | * Args: |
| 195 | * syncState container for synchronization data. |
| 196 | * |
| 197 | * Returns: |
| 198 | * Factors[traceNb] synchronization factors for each trace |
| 199 | */ |
| 200 | static GArray* finalizeAnalysisEval(SyncState* const syncState) |
| 201 | { |
| 202 | GArray* factors; |
| 203 | unsigned int i; |
| 204 | |
| 205 | factors= g_array_sized_new(FALSE, FALSE, sizeof(Factors), |
| 206 | syncState->traceNb); |
| 207 | g_array_set_size(factors, syncState->traceNb); |
| 208 | for (i= 0; i < syncState->traceNb; i++) |
| 209 | { |
| 210 | Factors* e; |
| 211 | |
| 212 | e= &g_array_index(factors, Factors, i); |
| 213 | e->drift= 1.; |
| 214 | e->offset= 0.; |
| 215 | } |
| 216 | |
| 217 | return factors; |
| 218 | } |
| 219 | |
| 220 | |
| 221 | /* |
| 222 | * Print statistics related to analysis. Must be called after |
| 223 | * finalizeAnalysis. |
| 224 | * |
| 225 | * Args: |
| 226 | * syncState container for synchronization data. |
| 227 | */ |
| 228 | static void printAnalysisStatsEval(SyncState* const syncState) |
| 229 | { |
| 230 | AnalysisDataEval* analysisData; |
| 231 | unsigned int i, j; |
| 232 | |
| 233 | if (!syncState->stats) |
| 234 | { |
| 235 | return; |
| 236 | } |
| 237 | |
| 238 | analysisData= (AnalysisDataEval*) syncState->analysisData; |
| 239 | |
| 240 | printf("Synchronization evaluation analysis stats:\n"); |
| 241 | printf("\tsum of broadcast differential delays: %g\n", |
| 242 | analysisData->stats->broadcastDiffSum); |
| 243 | |
| 244 | printf("\tIndividual evaluation:\n" |
| 245 | "\t\tTrace pair Inversions Too fast (No RTT info)\n"); |
| 246 | |
| 247 | for (i= 0; i < syncState->traceNb; i++) |
| 248 | { |
| 249 | for (j= i + 1; j < syncState->traceNb; j++) |
| 250 | { |
| 251 | TracePairStats* tpStats; |
| 252 | const char* format= "\t\t%3d - %-3d %-10u %-10u %u\n"; |
| 253 | |
| 254 | tpStats= &analysisData->stats->allStats[i][j]; |
| 255 | |
| 256 | printf(format, i, j, tpStats->inversionNb, tpStats->tooFastNb, |
| 257 | tpStats->noRTTInfoNb); |
| 258 | |
| 259 | tpStats= &analysisData->stats->allStats[j][i]; |
| 260 | |
| 261 | printf(format, j, i, tpStats->inversionNb, tpStats->tooFastNb, |
| 262 | tpStats->noRTTInfoNb); |
| 263 | } |
| 264 | } |
| 265 | } |