brycebaril

The prep-script.sh will setup the latest Node and install the latest perf version on your Linux box.

When you want to generate the flame graph, run the following (folder locations taken from install script):

sudo sysctl kernel/kptr_restrict=0

perf record -i -g -e cycles:u -- ~/sources/node/node --perf-basic-prof script.js

perf script | egrep -v "( __libc_start| LazyCompile | v8::internal::| Builtin:| Stub:| LoadIC:|\[unknown\]| LoadPolymorphicIC:)" | sed 's/ LazyCompile:[*~]\?/ /' | ~/sources/FlameGraph/stackcollapse-perf.pl > out.perf-folded

brycebaril

/*
	Browserify Live Demos!
  How to make your own:
  1. Clone this RequireBin
  2. Adjust the REQUIRES section
  3. Create a gist with demo snippets that can be run
  4. Put the id for that gist into the demoGist variable
*/

/* REQUIRES: Put modules you need in your demo in this Array */

brycebaril

var stats = require("stats-lite")
var dice = require("droll")

var rolls = []
for (var i = 0; i < 3000; i++) {
  rolls.push(dice.roll("2d6").total)
}

console.log("sum: %s", stats.sum(rolls))
console.log("mean: %s", stats.mean(rolls))

brycebaril

var levelup = require("levelup")
var leveljs = require("level-js")
var db = levelup("./demo", {db: leveljs})

db.put("wow", "mom", function (err, reply) {
  if (err) return console.log(err)
  db.get("wow", function (err, reply) {
    if (err) return console.log(err)
    console.log("Got: '%s'", reply)
  })

brycebaril

/*
	Browserify Live Demos!
  How to make your own:
  1. Clone this RequireBin
  2. Adjust the REQUIRES section
  3. Create a gist with demo snippets that can be run
  4. Put the id for that gist into the demoGist variable
*/

/* REQUIRES: Put modules you need in your demo in this Array */

brycebaril

var observer = require('continuous-observer')
var cave = require('cave-automata-2d')
var fill = require('ndarray-fill')
var zero = require('zeros')
var raf = require('raf')

var canvas = document.createElement('canvas')
var ctx = canvas.getContext('2d')

// Set up the controls, so that we can control

brycebaril

// try requiring some modules from NPM and then hit Run
var s = require('stats-lite')
console.log(s.mean([0, 9, 100, 3, 51, 33, Math.random() * 20]))

brycebaril

// try requiring some modules from NPM and then hit Run
var s = require('stats-lite')
console.log(s.mean([0, 9, 100, 3, 51, 33, Math.random() * 20]))

brycebaril

var spigot = require("stream-spigot")
var through2 = require("through2")
var terminus = require("terminus")
var mb = require("multibuffer")

spigot(["aaaaaaaaaaa", "bbbbbbbbbbbb", "cccccccccccccccc"])
  .pipe(through2(function (chunk, encoding, callback) {
    this.push(mb.pack([chunk]))
    callback()
  }))

brycebaril

var client = require("redis").createClient()

var pattern = process.argv[2]

if (!pattern) throw new Error("Read codez for usage")

client.keys(pattern, function (err, keys) {
  for (var i = 0; i < keys.length; i++) {
    client.del(keys[i])
  }