private synchronized void addNewEntrants() {
int running = allSplits.size();
for (int i = 0; i < minimumNumberOfTasks - running; i++) {
PrioritizedSplitRunner split = pollNextSplitWorker();
if (split == null) {
break;
}
queuedTime.add(System.nanoTime() - split.createdNanos);
startSplit(split);
}
}
private synchronized void scheduleTaskIfNecessary(TaskHandle taskHandle) {
// if task has less than the minimum guaranteed splits running,
// immediately schedule a new split for this task. This assures
// that a task gets its fair amount of consideration (you have to
// have splits to be considered for running on a thread).
if (taskHandle.getRunningSplits() < GUARANTEED_SPLITS_PER_TASK) {
PrioritizedSplitRunner split = taskHandle.pollNextSplit();
if (split != null) {
startSplit(split);
queuedTime.add(System.nanoTime() - split.createdNanos);
}
}
}
private synchronized void splitFinished(PrioritizedSplitRunner split) {
allSplits.remove(split);
pendingSplits.remove(split);
TaskHandle taskHandle = split.getTaskHandle();
taskHandle.splitComplete(split);
wallTime.add(System.nanoTime() - split.createdNanos);
scheduleTaskIfNecessary(taskHandle);
addNewEntrants();
}
