@libp2p/perf

Implementation of Perf Protocol

About

The PerfService implements the perf protocol, which can be used to measure transfer performance within and across libp2p implementations.

Example

import { noise } from '@chainsafe/libp2p-noise'
import { yamux } from '@chainsafe/libp2p-yamux'
import { tcp } from '@libp2p/tcp'
import { createLibp2p, type Libp2p } from 'libp2p'
import { plaintext } from '@libp2p/plaintext'
import { perf, type Perf } from '@libp2p/perf'

const ONE_MEG = 1024 * 1024
const UPLOAD_BYTES = ONE_MEG * 1024
const DOWNLOAD_BYTES = ONE_MEG * 1024

async function createNode (): Promise<Libp2p<{ perf: Perf }>> {
  return createLibp2p({
    addresses: {
      listen: [
        '/ip4/0.0.0.0/tcp/0'
      ]
    },
    transports: [
      tcp()
    ],
    connectionEncrypters: [
      noise(), plaintext()
    ],
    streamMuxers: [
      yamux()
    ],
    services: {
      perf: perf()
    }
  })
}

const libp2p1 = await createNode()
const libp2p2 = await createNode()

for await (const output of libp2p1.services.perf.measurePerformance(libp2p2.getMultiaddrs()[0], UPLOAD_BYTES, DOWNLOAD_BYTES)) {
  console.info(output)
}

await libp2p1.stop()
await libp2p2.stop()

Install

$ npm i @libp2p/perf

Browser <script> tag

Loading this module through a script tag will make it's exports available as Libp2pPerf in the global namespace.

<script src="https://unpkg.com/@libp2p/perf/dist/index.min.js"></script>

API Docs

• https://libp2p.github.io/js-libp2p/modules/_libp2p_perf.html

License

Licensed under either of

• Apache 2.0, (LICENSE-APACHE / http://www.apache.org/licenses/LICENSE-2.0)
• MIT (LICENSE-MIT / http://opensource.org/licenses/MIT)

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.