@Override
public boolean evaluate() {
if (curInstance == null) {
curInstance = createInstance(0, selectedVm); // create a Instance with the past values
}
if (app.getSuspendedTicks() > 0
|| app.getVm().getSuspendedTicks() > 0
|| app.getVm().getPm().getSuspendedTicks() > 0) {
return false;
} else if (waitForEvaluation > 0) {
waitForEvaluation--;
return false;
} else {
// System.out.println("APP - Running Ticks: " + app.getRunningTicks());
LinkedList<Integer> cpuusagehist = selectedVm.getPm().getCpuUsageHistory(10);
LinkedList<Integer> memusagehist = selectedVm.getPm().getMemoryUsageHistory(10);
LinkedList<Integer> storageusagehist = selectedVm.getPm().getStorageUsageHistory(10);
double evaluation =
(255
- calculateUsageRatio(cpuusagehist, 85)
- calculateUsageRatio(memusagehist, 85)
- calculateUsageRatio(storageusagehist, 85))
/ 255;
// subtract SLA Violations
evaluation -=
(app.getCpuSlaErrorcount() + app.getMemorySlaErrorcount() + app.getStorageSlaErrorcount())
/ 10;
// minimum of 0
// evaluation = Math.max(0, evaluation);
Monitor.getInstance().logExecution(app, this, evaluation, this.globalTickExecution);
curInstance.setValue(getKnowledgeBase().attribute(63), evaluation);
this.setLocalEvaluation(evaluation);
getKnowledgeBase().add(curInstance);
}
return true;
}
