presto-main/src/main/java/io/prestosql/execution/executor/TaskHandle.java/TaskHandle/addScheduledNanos
class TaskHandle:    public synchronized Priority addScheduledNanos(long durationNanos)
    {
        concurrencyController.update(durationNanos, utilizationSupplier.getAsDouble(), runningLeafSplits.size());
        scheduledNanos += durationNanos;

        Priority newPriority = splitQueue.updatePriority(priority.get(), durationNanos, scheduledNanos);

        priority.set(newPriority);
        return newPriority;
    }