jgaskins

Drivers

Name	Description
ruby	The redis gem with the plain-Ruby driver
hiredis	The redis gem with the hiredis driver (compiled as a C extension)
myredis	Pure-Ruby, optimized for the specific operation

Benchmarks

jgaskins

require 'bundler/inline'

require 'socket'
class MyRedis
  CRLF = "\r\n"

  def initialize
    @connection = TCPSocket.new('localhost', 6379)
    @connection.sync = false
  end

jgaskins

require "http"

require "./route"

class App
  include HTTP::Handler
  include Route

  def call(context)
    route context do |r, response|

jgaskins

require "benchmark"

value = nil
Benchmark.ips do |x|
  x.report "1 ivar" { value = OneIVar.new }
  x.report "2 ivars" { value = TwoIVars.new }
  x.report "4 ivars" { value = FourIVars.new }
  x.report "8 ivars" { value = EightIVars.new }
  x.report "16 ivars" { value = SixteenIVars.new }
end

jgaskins

require "benchmark"

int = 0
[1, 12, 1234, 12345678, 1234567812345678].each do |number|
  puts "Parsing #{number}..."
  io = IO::Memory.new
  io << ":#{number}\r\n" # Redis integer format
  io.rewind

  Benchmark.ips do |x|

jgaskins

require "socket"

module Redis
  alias Type = String | Int64 | Nil | Array(Type)

  class Future
    property! value : Type
  end

  module Commands

jgaskins

class Redis
  module Commands
    def xadd(stream, id, params : Hash)
      params = params.each_with_object(Array(String).new(params.size * 2)) do |(key, value), array|
        array << key << value.to_s
      end
      string_command(["XADD", stream, id] + params)
    end

    def xrange(stream, start, finish)

jgaskins

/* Data structure to hold our event handlers. It's important that when you
   remove an element from the DOM that you delete its associated event
   handler id to avoid memory leaks.

  {
    12345: { // DOM element's event handler id
      click: [
        function(event) { ... },
      ]
    },

jgaskins

// The $url is passed in as the only parameter to this query. The query
// handles everything else.
CALL apoc.load.jsonParams($url, {Accept: 'application/json'}, null, null, {}) YIELD value AS data

// Upsert the person into the DB, using the :Person label in case they aren't
// a fully-fledged account yet
MERGE (person:Person { id: data.id })
ON CREATE SET
    person.created_at = datetime()

jgaskins

module SetOperations
  def union_scope(*scopes)
    apply_operation :UNION, scopes
  end

  def intersect_scope(*scopes)
    apply_operation :INTERSECT, scopes
  end

  def except_scope(*scopes)