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@FugueNation
FugueNation / almost a module
Created December 10, 2011 14:56
Ultra fast Metrics with Node.js & Redis's bitmaps
var EventEmitter = require("events").EventEmitter,
redis = require("redis"),
dateformat = require("dateformat");
function population32(x)
{
x -= ((x >> 1) & 0x55555555);
x = (((x >> 2) & 0x33333333) + (x & 0x33333333));
x = (((x >> 4) + x) & 0x0f0f0f0f);
x += (x >> 8);
@cpatni
cpatni / app.rb
Created November 21, 2011 22:39
unique calculation using redis
require 'sinatra'
require 'redis'
require 'json'
require 'date'
class String
def &(str)
result = ''
result.force_encoding("BINARY")