git ssb

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var Trie = require('merkle-patricia-tree')
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const crypto = require('crypto')
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// const rlp = require('rlp')
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const level = require('level')
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const db = level('./eth-testdb')
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db._get = db.get
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let lookups = 0
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db.get = function (key, opts, cb) {
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  lookups++
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  return db._get(key, opts, cb)
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}
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let trie = new Trie(db)
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const entries = 100000
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console.log('entries', entries)
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async function run () {
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  let start = new Date()
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  let hrstart = process.hrtime()
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  for (let i = 0; i < entries; i++) {
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    const key = crypto.createHash('sha256').update(i.toString()).digest().slice(0, 20)
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    await new Promise((resolve, reject) => {
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      trie.put(key, i, resolve)
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    })
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  }
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  let end = new Date() - start
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  let hrend = process.hrtime(hrstart)
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  console.info('state root creation time: %dms', end)
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  console.info('state root creation time (hr): %ds %dms', hrend[0], hrend[1] / 1000000)
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  start = new Date()
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  hrstart = process.hrtime()
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  console.log('root', trie.root.toString('hex'))
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  let proofSize = 0
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  for (let i = 0; i < entries; i++) {
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    const key = crypto.createHash('sha256').update(i.toString()).digest().slice(0, 20)
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    trie = new Trie(db, trie.root)
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    const promise = new Promise((resolve, reject) => {
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      trie.get(key, (err, value) => {
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        // console.log(value)
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        // let proof = stack.map(el => {
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        //   return el.raw
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        // })
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        // let encoded = rlp.encode(proof)
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        // proofSize += encoded.length
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        resolve()
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      })
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    })
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    await promise
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  }
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  end = new Date() - start
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  hrend = process.hrtime(hrstart)
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  console.info('read time: %dms', end)
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  console.info('read time (hr): %ds %dms', hrend[0], hrend[1] / 1000000)
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  console.info('db lookups', lookups)
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  // console.log('rlp size', proofSize / entries)
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}
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run()
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