presto-main/src/main/java/io/prestosql/execution/executor/MultilevelSplitQueue.java/MultilevelSplitQueue/MultilevelSplitQueue
class MultilevelSplitQueue:    @Inject
    public MultilevelSplitQueue(TaskManagerConfig taskManagerConfig)
    {
        this(taskManagerConfig.getLevelTimeMultiplier().doubleValue());
    }