X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=lttv%2Flttv%2Fsync%2Fsync_chain_lttv.c;h=4a70154884a63a59ac703abecc95dca5753a6c76;hb=e072e1abc02d780d84664fcb2c971eb5a317f664;hp=399b79628221c7446cf5f2637e01ccc2b3beff0f;hpb=f10c27a850e57bf88bf1d4440eb450729782f409;p=lttv.git diff --git a/lttv/lttv/sync/sync_chain_lttv.c b/lttv/lttv/sync/sync_chain_lttv.c index 399b7962..4a701548 100644 --- a/lttv/lttv/sync/sync_chain_lttv.c +++ b/lttv/lttv/sync/sync_chain_lttv.c @@ -33,7 +33,7 @@ #include #include -#include "sync_chain_lttv.h" +#include "sync_chain.h" #ifndef g_info @@ -45,19 +45,51 @@ static void init(); static void destroy(); static void gfAppendAnalysisName(gpointer data, gpointer user_data); - -static gboolean optionSync; -static gboolean optionSyncStats; -static gboolean optionSyncNull; -static char* optionSyncAnalysis; -static gboolean optionSyncGraphs; -static char* optionSyncGraphsDir; -static char graphsDir[20]; +static void gfAddModuleOption(gpointer data, gpointer user_data); +static void gfRemoveModuleOption(gpointer data, gpointer user_data); GQueue processingModules= G_QUEUE_INIT; GQueue matchingModules= G_QUEUE_INIT; GQueue analysisModules= G_QUEUE_INIT; - +GQueue moduleOptions= G_QUEUE_INIT; + +static char* argHelpNone= "none"; +static ModuleOption optionSync= { + .longName= "sync", + .hasArg= NO_ARG, + {.present= false}, + .optionHelp= "synchronize the time between the traces", +}; +static char graphsDir[20]; +static ModuleOption optionSyncStats= { + .longName= "sync-stats", + .hasArg= NO_ARG, + {.present= false}, + .optionHelp= "print statistics about the time synchronization", +}; +static ModuleOption optionSyncNull= { + .longName= "sync-null", + .hasArg= NO_ARG, + {.present= false}, + .optionHelp= "read the events but do not perform any processing", +}; +static GString* analysisModulesNames; +static ModuleOption optionSyncAnalysis= { + .longName= "sync-analysis", + .hasArg= REQUIRED_ARG, + .optionHelp= "specify the algorithm to use for event analysis", +}; +static ModuleOption optionSyncGraphs= { + .longName= "sync-graphs", + .hasArg= NO_ARG, + {.present= false}, + .optionHelp= "output gnuplot graph showing synchronization points", +}; +static ModuleOption optionSyncGraphsDir= { + .longName= "sync-graphs-dir", + .hasArg= REQUIRED_ARG, + .optionHelp= "specify the directory where to store the graphs", +}; /* * Module init function @@ -72,51 +104,37 @@ GQueue analysisModules= G_QUEUE_INIT; */ static void init() { - GString* analysisModulesNames; int retval; g_debug("\t\t\tXXXX sync init\n"); - optionSync= FALSE; - lttv_option_add("sync", '\0', "synchronize the time between the traces" , - "none", LTTV_OPT_NONE, &optionSync, NULL, NULL); - - optionSyncStats= FALSE; - lttv_option_add("sync-stats", '\0', "print statistics about the time " - "synchronization", "none", LTTV_OPT_NONE, &optionSyncStats, NULL, - NULL); - - optionSyncNull= FALSE; - lttv_option_add("sync-null", '\0', "read the events but do not perform " - "any processing", "none", LTTV_OPT_NONE, &optionSyncNull, NULL, NULL); - g_assert(g_queue_get_length(&analysisModules) > 0); - optionSyncAnalysis= ((AnalysisModule*) + optionSyncAnalysis.arg = ((AnalysisModule*) g_queue_peek_head(&analysisModules))->name; analysisModulesNames= g_string_new(""); g_queue_foreach(&analysisModules, &gfAppendAnalysisName, analysisModulesNames); // remove the last ", " g_string_truncate(analysisModulesNames, analysisModulesNames->len - 2); - lttv_option_add("sync-analysis", '\0', "specify the algorithm to use for " - "event analysis" , analysisModulesNames->str, LTTV_OPT_STRING, - &optionSyncAnalysis, NULL, NULL); - g_string_free(analysisModulesNames, TRUE); - - optionSyncGraphs= FALSE; - lttv_option_add("sync-graphs", '\0', "output gnuplot graph showing " - "synchronization points", "none", LTTV_OPT_NONE, &optionSyncGraphs, - NULL, NULL); + optionSyncAnalysis.argHelp= analysisModulesNames->str; retval= snprintf(graphsDir, sizeof(graphsDir), "graphs-%d", getpid()); if (retval > sizeof(graphsDir) - 1) { graphsDir[sizeof(graphsDir) - 1]= '\0'; } - optionSyncGraphsDir= graphsDir; - lttv_option_add("sync-graphs-dir", '\0', "specify the directory where to" - " store the graphs", graphsDir, LTTV_OPT_STRING, &optionSyncGraphsDir, - NULL, NULL); + optionSyncGraphsDir.arg= graphsDir; + optionSyncGraphsDir.argHelp= graphsDir; + + g_queue_push_head(&moduleOptions, &optionSyncGraphsDir); + g_queue_push_head(&moduleOptions, &optionSyncGraphs); + g_queue_push_head(&moduleOptions, &optionSyncAnalysis); + g_queue_push_head(&moduleOptions, &optionSyncNull); + g_queue_push_head(&moduleOptions, &optionSyncStats); + g_queue_push_head(&moduleOptions, &optionSync); + + g_queue_foreach(&moduleOptions, &gfAddModuleOption, NULL); + } @@ -127,12 +145,13 @@ static void destroy() { g_debug("\t\t\tXXXX sync destroy\n"); - lttv_option_remove("sync"); - lttv_option_remove("sync-stats"); - lttv_option_remove("sync-null"); - lttv_option_remove("sync-analysis"); - lttv_option_remove("sync-graphs"); - lttv_option_remove("sync-graphs-dir"); + g_queue_foreach(&moduleOptions, &gfRemoveModuleOption, NULL); + g_string_free(analysisModulesNames, TRUE); + + g_queue_clear(&processingModules); + g_queue_clear(&matchingModules); + g_queue_clear(&analysisModules); + g_queue_clear(&moduleOptions); } @@ -150,16 +169,16 @@ void syncTraceset(LttvTracesetContext* const traceSetContext) struct timeval startTime, endTime; struct rusage startUsage, endUsage; GList* result; - FILE* graphsStream; + unsigned int i, j; int retval; - if (optionSync == FALSE) + if (!optionSync.present) { g_debug("Not synchronizing traceset because option is disabled"); return; } - if (optionSyncStats) + if (optionSyncStats.present) { gettimeofday(&startTime, 0); getrusage(RUSAGE_SELF, &startUsage); @@ -169,7 +188,7 @@ void syncTraceset(LttvTracesetContext* const traceSetContext) syncState= malloc(sizeof(SyncState)); syncState->traceNb= lttv_traceset_number(traceSetContext->ts); - if (optionSyncStats) + if (optionSyncStats.present) { syncState->stats= true; } @@ -178,40 +197,15 @@ void syncTraceset(LttvTracesetContext* const traceSetContext) syncState->stats= false; } - if (optionSyncGraphs) - { - syncState->graphs= optionSyncGraphsDir; - } - else - { - syncState->graphs= NULL; - } - - // Identify and initialize processing module - syncState->processingData= NULL; - if (optionSyncNull) - { - result= g_queue_find_custom(&processingModules, "LTTV-null", - &gcfCompareProcessing); - } - else - { - result= g_queue_find_custom(&processingModules, "LTTV-standard", - &gcfCompareProcessing); - } - g_assert(result != NULL); - syncState->processingModule= (ProcessingModule*) result->data; - - graphsStream= NULL; - if (syncState->graphs && - syncState->processingModule->writeProcessingGraphsPlots != NULL) + if (optionSyncGraphs.present) { char* cwd; int graphsFp; // Create the graph directory right away in case the module initialization // functions have something to write in it. - cwd= changeToGraphDir(syncState->graphs); + syncState->graphsDir= optionSyncGraphsDir.arg; + cwd= changeToGraphDir(optionSyncGraphsDir.arg); if ((graphsFp= open("graphs.gnu", O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP | S_IROTH @@ -219,11 +213,15 @@ void syncTraceset(LttvTracesetContext* const traceSetContext) { g_error(strerror(errno)); } - if ((graphsStream= fdopen(graphsFp, "w")) == NULL) + if ((syncState->graphsStream= fdopen(graphsFp, "w")) == NULL) { g_error(strerror(errno)); } + fprintf(syncState->graphsStream, + "#!/usr/bin/gnuplot\n\n" + "set terminal postscript eps color size 8in,6in\n"); + retval= chdir(cwd); if (retval == -1) { @@ -231,13 +229,34 @@ void syncTraceset(LttvTracesetContext* const traceSetContext) } free(cwd); } + else + { + syncState->graphsStream= NULL; + syncState->graphsDir= NULL; + } - // Identify matching and analysis modules + // Identify and initialize modules + syncState->processingData= NULL; + if (optionSyncNull.present) + { + result= g_queue_find_custom(&processingModules, "LTTV-null", + &gcfCompareProcessing); + } + else + { + result= g_queue_find_custom(&processingModules, "LTTV-standard", + &gcfCompareProcessing); + } + g_assert(result != NULL); + syncState->processingModule= (ProcessingModule*) result->data; + + syncState->matchingData= NULL; result= g_queue_find_custom(&matchingModules, "TCP", &gcfCompareMatching); g_assert(result != NULL); syncState->matchingModule= (MatchingModule*) result->data; - result= g_queue_find_custom(&analysisModules, optionSyncAnalysis, + syncState->analysisData= NULL; + result= g_queue_find_custom(&analysisModules, optionSyncAnalysis.arg, &gcfCompareAnalysis); if (result != NULL) { @@ -245,19 +264,15 @@ void syncTraceset(LttvTracesetContext* const traceSetContext) } else { - g_error("Analysis module '%s' not found", optionSyncAnalysis); + g_error("Analysis module '%s' not found", optionSyncAnalysis.arg); } - syncState->processingModule->initProcessing(syncState, traceSetContext); - - syncState->matchingData= NULL; - syncState->analysisData= NULL; - - if (!optionSyncNull) + if (!optionSyncNull.present) { - syncState->matchingModule->initMatching(syncState); syncState->analysisModule->initAnalysis(syncState); + syncState->matchingModule->initMatching(syncState); } + syncState->processingModule->initProcessing(syncState, traceSetContext); // Process traceset lttv_process_traceset_seek_time(traceSetContext, ltt_time_zero); @@ -268,58 +283,87 @@ void syncTraceset(LttvTracesetContext* const traceSetContext) syncState->processingModule->finalizeProcessing(syncState); // Write graphs file - if (graphsStream != NULL) + if (optionSyncGraphs.present) { - unsigned int i, j; - - fprintf(graphsStream, - "#!/usr/bin/gnuplot\n\n" - "set terminal postscript eps color size 8in,6in\n"); - // Cover the upper triangular matrix, i is the reference node. for (i= 0; i < syncState->traceNb; i++) { for (j= i + 1; j < syncState->traceNb; j++) { - long pos; + long pos1, pos2, trunc; - fprintf(graphsStream, - "\nset output \"%03d-%03d.eps\"\n" + fprintf(syncState->graphsStream, + "\nreset\n" + "set output \"%03d-%03d.eps\"\n" "plot \\\n", i, j); - syncState->processingModule->writeProcessingGraphsPlots(graphsStream, - syncState, i, j); + if (syncState->processingModule->writeProcessingGraphsPlots) + { + syncState->processingModule->writeProcessingGraphsPlots(syncState, + i, j); + } + if (syncState->matchingModule->writeMatchingGraphsPlots) + { + syncState->matchingModule->writeMatchingGraphsPlots(syncState, + i, j); + } + if (syncState->analysisModule->writeAnalysisGraphsPlots) + { + syncState->analysisModule->writeAnalysisGraphsPlots(syncState, + i, j); + } - // Remove the ", \\\n" from the last graph plot line - fflush(graphsStream); - pos= ftell(graphsStream); - if (ftruncate(fileno(graphsStream), pos - 4) == -1) + fflush(syncState->graphsStream); + pos2= ftell(syncState->graphsStream); + if (pos1 != pos2) + { + // Remove the ", \\\n" from the last graph plot line + trunc= pos2 - 4; + } + else + { + // Remove the "plot \\\n" line to avoid creating an invalid + // gnuplot script + trunc= pos2 - 7; + } + + if (ftruncate(fileno(syncState->graphsStream), trunc) == -1) { g_error(strerror(errno)); } - if (fseek(graphsStream, 0, SEEK_END) == -1) + if (fseek(syncState->graphsStream, 0, SEEK_END) == -1) { g_error(strerror(errno)); } - fprintf(graphsStream, - "\nset output \"%1$03d-%2$03d.eps\"\n" - "set key inside right bottom\n" - "set title \"\"\n" - "set xlabel \"Clock %1$u\"\n" - "set xtics nomirror\n" - "set ylabel \"Clock %2$u\"\n" - "set ytics nomirror\n", i, j); + fprintf(syncState->graphsStream, + "\nset output \"%03d-%03d.eps\"\n" + "set title \"\"\n", i, j); - syncState->processingModule->writeProcessingGraphsOptions(graphsStream, - syncState, i, j); + if (syncState->processingModule->writeProcessingGraphsOptions) + { + syncState->processingModule->writeProcessingGraphsOptions(syncState, + i, j); + } + if (syncState->matchingModule->writeMatchingGraphsOptions) + { + syncState->matchingModule->writeMatchingGraphsOptions(syncState, + i, j); + } + if (syncState->analysisModule->writeAnalysisGraphsOptions) + { + syncState->analysisModule->writeAnalysisGraphsOptions(syncState, + i, j); + } - fprintf(graphsStream, - "replot\n"); + if (pos1 != pos2) + { + fprintf(syncState->graphsStream, "replot\n"); + } } } - if (fclose(graphsStream) != 0) + if (fclose(syncState->graphsStream) != 0) { g_error(strerror(errno)); } @@ -329,6 +373,31 @@ void syncTraceset(LttvTracesetContext* const traceSetContext) { syncState->processingModule->printProcessingStats(syncState); } + if (syncState->matchingModule->printMatchingStats != NULL) + { + syncState->matchingModule->printMatchingStats(syncState); + } + if (syncState->analysisModule->printAnalysisStats != NULL) + { + syncState->analysisModule->printAnalysisStats(syncState); + } + + if (optionSyncStats.present) + { + printf("Resulting synchronization factors:\n"); + for (i= 0; i < syncState->traceNb; i++) + { + LttTrace* t; + + t= traceSetContext->traces[i]->t; + + printf("\ttrace %u drift= %g offset= %g (%f) start time= %ld.%09ld\n", + i, t->drift, t->offset, (double) tsc_to_uint64(t->freq_scale, + t->start_freq, t->offset) / NANOSECONDS_PER_SECOND, + t->start_time_from_tsc.tv_sec, + t->start_time_from_tsc.tv_nsec); + } + } syncState->processingModule->destroyProcessing(syncState); if (syncState->matchingModule != NULL) @@ -342,7 +411,7 @@ void syncTraceset(LttvTracesetContext* const traceSetContext) free(syncState); - if (optionSyncStats) + if (optionSyncStats.present) { gettimeofday(&endTime, 0); retval= getrusage(RUSAGE_SELF, &endUsage); @@ -478,7 +547,7 @@ static void gfAppendAnalysisName(gpointer data, gpointer user_data) * The current working directory before the execution of the function. The * string must be free'd by the caller. */ -char* changeToGraphDir(char* const graphs) +char* changeToGraphDir(const char* const graphs) { int retval; char* cwd; @@ -509,6 +578,43 @@ char* changeToGraphDir(char* const graphs) } +/* + * A GFunc for g_queue_foreach() + * + * Args: + * data: ModuleOption* + * user_data: NULL + */ +static void gfAddModuleOption(gpointer data, gpointer user_data) +{ + ModuleOption* option; + LttvOptionType conversion[]= { + [NO_ARG]= LTTV_OPT_NONE, + [REQUIRED_ARG]= LTTV_OPT_STRING, + }; + + g_assert_cmpuint(sizeof(conversion) / sizeof(*conversion), ==, + HAS_ARG_COUNT); + option= (ModuleOption*) data; + lttv_option_add(option->longName, '\0', option->optionHelp, + option->argHelp ? option->argHelp : argHelpNone, + conversion[option->hasArg], &option->arg, NULL, NULL); +} + + +/* + * A GFunc for g_queue_foreach() + * + * Args: + * data: ModuleOption* + * user_data: NULL + */ +static void gfRemoveModuleOption(gpointer data, gpointer user_data) +{ + lttv_option_remove(((ModuleOption*) data)->longName); +} + + LTTV_MODULE("sync", "Synchronize traces", \ "Synchronizes a traceset based on the correspondance of network events", \ init, destroy, "option")