---
res:
  bibo_abstract:
  - "We propose separating the task of reliable transaction dissemination from transaction
    ordering, to enable high-performance Byzantine fault-tolerant quorum-based consensus.
    We design and evaluate a mempool protocol, Narwhal, specializing in high-throughput
    reliable dissemination and storage of causal histories of transactions. Narwhal
    tolerates an asynchronous network and maintains high performance despite failures.
    Narwhal is designed to easily scale-out using multiple workers at each validator,
    and we demonstrate that there is no foreseeable limit to the throughput we can
    achieve.\r\nComposing Narwhal with a partially synchronous consensus protocol
    (Narwhal-HotStuff) yields significantly better throughput even in the presence
    of faults or intermittent loss of liveness due to asynchrony. However, loss of
    liveness can result in higher latency. To achieve overall good performance when
    faults occur we design Tusk, a zero-message overhead asynchronous consensus protocol,
    to work with Narwhal. We demonstrate its high performance under a variety of configurations
    and faults.\r\nAs a summary of results, on a WAN, Narwhal-Hotstuff achieves over
    130,000 tx/sec at less than 2-sec latency compared with 1,800 tx/sec at 1-sec
    latency for Hotstuff. Additional workers increase throughput linearly to 600,000
    tx/sec without any latency increase. Tusk achieves 160,000 tx/sec with about 3
    seconds latency. Under faults, both protocols maintain high throughput, but Narwhal-HotStuff
    suffers from increased latency.@eng"
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: George
      foaf_name: Danezis, George
      foaf_surname: Danezis
  - foaf_Person:
      foaf_givenName: Eleftherios
      foaf_name: Kokoris Kogias, Eleftherios
      foaf_surname: Kokoris Kogias
      foaf_workInfoHomepage: http://www.librecat.org/personId=f5983044-d7ef-11ea-ac6d-fd1430a26d30
  - foaf_Person:
      foaf_givenName: Alberto
      foaf_name: Sonnino, Alberto
      foaf_surname: Sonnino
  - foaf_Person:
      foaf_givenName: Alexander
      foaf_name: Spiegelman, Alexander
      foaf_surname: Spiegelman
  bibo_doi: 10.1145/3492321.3519594
  dct_date: 2022^xs_gYear
  dct_identifier:
  - UT:000926506800003
  dct_isPartOf:
  - http://id.crossref.org/issn/9781450391627
  dct_language: eng
  dct_publisher: Association for Computing Machinery@
  dct_title: 'Narwhal and Tusk: A DAG-based mempool and efficient BFT consensus@'
...