Théoriquement RR bon, mais le temps de compilation est très long
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florian.sauzeat
parent
fb90cbf14a
commit
dfab397122
@ -1,10 +1,10 @@
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1,10,0
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2,40,0
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3,50,30
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4,30,20
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5,40,10
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6,50,30
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7,90,40
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8,90,60
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9,50,40
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10,90,30
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1,10,0,0
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2,40,0,0
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3,50,30,0
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4,30,20,0
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5,40,10,0
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6,50,30,0
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7,90,40,0
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8,90,60,0
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9,50,40,0
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10,90,30,0
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150
simulator.c
150
simulator.c
@ -16,6 +16,7 @@ struct pinfo {
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int arrival_time;
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int execution_time;
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int priority;
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int nb_time_pre_empted;
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int wait_time;
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int turnaround_time;
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@ -153,8 +154,8 @@ void free_processes(struct pinfo * next) {
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void write_file(struct pinfo * process, struct perf_info * perf) {
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FILE *myStream_execution = fopen("execution2.csv", "w");
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FILE *myStream_performance = fopen("performance2.csv", "w");
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FILE *myStream_execution = fopen("executionRR.csv", "w");
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FILE *myStream_performance = fopen("performanceRR.csv", "w");
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if (myStream_execution == NULL || myStream_performance == NULL) {
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@ -163,96 +164,109 @@ void write_file(struct pinfo * process, struct perf_info * perf) {
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}
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while (process != NULL) {
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fprintf(myStream_execution, "%d,%d,%d,%d\n", // Ajout de la colonne des préemptions
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fprintf(myStream_execution, "%d,%d,%d,%d\n",
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process->id,
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process->turnaround_time,
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process->wait_time,
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process->execution_time - process->remaining_time); // Nombre de préemptions
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process->nb_time_pre_empted);
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process = process->next_pinfo;
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}
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fclose(myStream_execution);
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fprintf(myStream_performance, "%d,%d,%d\n",
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perf->total_time,
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perf->total_nr_ctxt_switch,
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perf->total_time_ctxt_switch);
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fclose(myStream_performance);
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}
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struct perf_info schedule_RR(struct pinfo * processes) {
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int current_time = 0; // Temps actuel
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int context_switches = 0; // Nombre de changements de contexte
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struct pinfo *enqueue(struct pinfo *queue, struct pinfo *process) {
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if (queue == NULL) {
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return process;
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}
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struct pinfo *temp = queue;
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while (temp->next_pinfo != NULL) {
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temp = temp->next_pinfo;
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}
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temp->next_pinfo = process;
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return queue;
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}
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struct pinfo *dequeue(struct pinfo **queue) {
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if (*queue == NULL) {
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return NULL;
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}
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struct pinfo *process = *queue;
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*queue = (*queue)->next_pinfo;
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process->next_pinfo = NULL;
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return process;
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}
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struct perf_info schedule_RR(struct pinfo *processes) {
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struct perf_info perf = {0, 0, 0};
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int current_time = 0;
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struct pinfo *queue = NULL;
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struct pinfo *current_process = NULL;
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int remaining_quantum = RR_QUANTUM;
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struct pinfo * queue = processes; // File d'attente de processus
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struct pinfo * temp; // Variable temporaire pour itérer
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while (1) {
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int all_done = 1; // Vérifier si tous les processus sont terminés
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// Itérer sur les processus dans la queue
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temp = queue;
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while (temp != NULL) {
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// Vérifiez si le processus a encore du temps restant
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if (temp->remaining_time > 0) {
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all_done = 0; // Il y a au moins un processus qui n'est pas terminé
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// Si le temps actuel est inférieur au temps d'arrivée
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if (current_time < temp->arrival_time) {
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current_time = temp->arrival_time; // Mettez à jour le temps
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while (processes != NULL || queue != NULL || current_process != NULL) {
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// Ajouter les nouveaux processus arrivés à la file d'attente
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while (processes != NULL && processes->arrival_time <= current_time) {
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processes->state = READY;
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queue = enqueue(queue, processes);
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printf("Processus %d ajouté à la file d'attente à l'heure %d\n", processes->id, current_time);
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processes = processes->next_pinfo;
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}
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// Exécutez le processus pendant le quantum
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if (temp->remaining_time > RR_QUANTUM) {
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current_time += RR_QUANTUM; // Ajoute le quantum au temps
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temp->remaining_time -= RR_QUANTUM; // Diminue le temps restant
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context_switches++; // Compter le changement de contexte
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// Si aucun processus en cours, prendre le suivant dans la file d'attente
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if (current_process == NULL && queue != NULL) {
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current_process = dequeue(&queue);
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current_process->nb_time_pre_empted++;
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remaining_quantum = RR_QUANTUM; // Réinitialiser le quantum
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printf("Processus %d pris de la file d'attente pour exécution à l'heure %d\n", current_process->id, current_time);
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}
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// Exécuter le processus courant
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if (current_process != NULL) {
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current_process->remaining_time--;
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current_process->turnaround_time++;
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remaining_quantum--;
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printf("Processus %d exécuté à l'heure %d, temps restant: %d, quantum restant: %d\n", current_process->id, current_time, current_process->remaining_time, remaining_quantum);
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current_time++;
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// Vérifier si le processus est terminé
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if (current_process->remaining_time == 0) {
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current_process->state = FINISHED;
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printf("Processus %d terminé à l'heure %d\n", current_process->id, current_time);
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current_process = NULL;
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} else if (remaining_quantum == 0) {
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// Si le quantum RR est atteint, remettre le processus en file d'attente
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current_process->state = WAITING;
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queue = enqueue(queue, current_process);
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printf("Processus %d préempté et remis en file d'attente à l'heure %d\n", current_process->id, current_time);
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current_process = NULL;
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}
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} else {
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// Le processus se termine ici
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current_time += temp->remaining_time; // Ajoutez le temps restant à current_time
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temp->turnaround_time = current_time - temp->arrival_time; // Calculer le TAT
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temp->wait_time += (temp->turnaround_time - temp->execution_time); // Calculer le WT
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temp->remaining_time = 0; // Le processus est terminé
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temp->state = FINISHED; // Marquez comme terminé
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}
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}
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temp = temp->next_pinfo; // Passer au processus suivant
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// Si aucun processus à exécuter, avancer le temps
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printf("Aucun processus à exécuter à l'heure %d, avancer le temps\n", current_time);
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current_time++;
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}
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// Réinitialiser la file d'attente
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temp = processes; // Revenir au début de la liste
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struct pinfo * last = NULL; // Pour maintenir la fin de la queue
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// Créer une nouvelle file d'attente
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while (temp != NULL) {
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// Ne pas ajouter les processus terminés à la nouvelle queue
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if (temp->remaining_time > 0) {
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if (last == NULL) {
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queue = temp; // Premier processus dans la nouvelle queue
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} else {
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last->next_pinfo = temp; // Ajouter à la fin
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}
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last = temp; // Mettre à jour le dernier élément de la queue
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}
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temp = temp->next_pinfo; // Passer au processus suivant
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}
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if (last != NULL) {
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last->next_pinfo = NULL; // Terminer la liste
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// Mise à jour des performances
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perf.total_time = current_time;
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perf.total_nr_ctxt_switch++;
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perf.total_time_ctxt_switch += CNTXT_SWITCH;
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}
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// Si tous les processus sont terminés, sortez de la boucle
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if (all_done) {
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break;
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}
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}
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// Mise à jour des statistiques de performance
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perf.total_time = current_time; // Total du temps écoulé
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perf.total_nr_ctxt_switch = context_switches; // Total des changements de contexte
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perf.total_time_ctxt_switch = context_switches * CNTXT_SWITCH; // Temps total pour les changements de contexte
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return perf; // Retournez les performances
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printf("Planification RR terminée\n");
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return perf;
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}
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