Package queue provides a fast, ring-buffer queue based on the version suggested by Dariusz Górecki.
    Using this instead of other, simpler, queue implementations (slice+append or linked list) provides
    substantial memory and time benefits, and fewer GC pauses.

    The queue implemented here is as fast as it is for an additional reason: it is not thread-safe.
    gopkg.in/eapache/queue.v1