private void updateNewFinalImbalance() {
imbalance.minimumEvents = Long.MAX_VALUE;
imbalance.maximumEvents = Long.MIN_VALUE;
imbalance.sourceSelector = null;
imbalance.destinationSelector = null;
for (NonBlockingIOThread selector : ioThreads) {
long eventCount = selectorEvents.get(selector);
int handlerCount = selectorToHandlers.get(selector).size();
if (eventCount > imbalance.maximumEvents && handlerCount > 1) {
// if a selector has only 1 handle, there is no point in making it a source selector since
// there is no handler that can be migrated anyway. In that case it is better to move on to
// the next selector.
imbalance.maximumEvents = eventCount;
imbalance.sourceSelector = selector;
}
if (eventCount < imbalance.minimumEvents) {
imbalance.minimumEvents = eventCount;
imbalance.destinationSelector = selector;
}
}
}
