git ssb

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var Stats = require('statistics')
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var cont = require('cont')
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function bench (a, b, N) {
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  N = N || 20,n = N
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  var sA = Stats(), sB = Stats()
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  var results_a = [], results_b = []
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  var A, B
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  var wins = 0
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  ;(function next () {
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    cont.series([
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      function (cb) {
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        a(function (err, data) {
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          var time = data.time/1000
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          var size = data.total/(1024*1024)
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          sA.value(size/time) //bytes per ms
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          results_a.push(A = data)
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          cb()
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        })
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      },
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      function (cb) {
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        b(function (err, data) {
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          var time = data.time/1000
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          var size = data.total/(1024*1024)
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          sB.value(size/time) //bytes per ms
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          results_b.push(B = data)
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          cb()
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        })
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      }
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    ].sort(function () {
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      return Math.random() - 0.5
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    }))(function (err) {
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      if(A.time < B.time)
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        wins ++
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      console.log('winner:', A.time < B.time ? 'A' : 'B', A, B)
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      if(0<--n) next()
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      else {
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        console.log('A: pull-stream')
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        console.log(sA.toJSON())
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        console.log('B: node stream')
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        console.log(sB.toJSON())
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        console.log('chance A wins:', wins/N, wins, N - wins)
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      }
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    })
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  })()
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}
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if(!module.parent) {
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  var file = process.argv[2]
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  var pull = require('./rate')
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  var node = require('./node-rate')
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  bench(function (cb) {
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    pull(file, cb)
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  }, function (cb) {
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    node(file, cb)
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  })
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}
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