For those interested, here are a few anecdotal benchmarks which suggest a slight impro

It's from nodejs version 12.11.1 <div class="snippet-clipboard-content notranslate

Benchmarks about wasm-lz4 HOT 3 OPEN

cruise-automation commented on September 23, 2024 1

Benchmarks

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Comments (3)

janpaul123 commented on September 23, 2024

Is this in the browser or in nodejs? Do you have a Github Gist or so of how you ran this? From what I remember the difference was much more dramatic, but I think that was mostly in the browser.

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jz3xyz commented on September 23, 2024

It's from nodejs version 12.11.1

node --version
v12.11.1

Code looks like this

const { open, TimeUtil } = require('rosbag')
const lz4 = require('lz4js')
const decompress = require('wasm-lz4')
const uuidv4 = require('uuid/v4')

const { performance } = require('perf_hooks');
const newTopics = []

// Begin Reading from Bag
const t0 = performance.now()
await bag.readMessages({
  topics: newTopics,
  decompress: { lz4: decompress },
}, result => {
  const { timestamp, message, topic } = result;
  // Convert message info to records
})
  .finally(() => { })
  .catch(err => { throw err })
const t1 = performance.now()
console.log(`[Converted] bag to X files in ${((t1 - t0) / 1000).toFixed(2)} seconds`)
//...

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janpaul123 commented on September 23, 2024

Ah that's still quite impressive since that library doesn't use any native extensions! 😮

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