Added benchmark

.gitignore

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+/node_modules/

.jshintignore

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+.git/
+node_modules/
+lib/
+/benchmark/implementations

.jshintrc

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+{
+  // Enforcing Options /////////////////////////////////////////////////////////
+
+  "bitwise"       : true,   // Prohibit bitwise operators (&, |, ^, etc.).
+  "camelcase"     : false,  // true: Identifiers must be in camelCase
+  "curly"         : true,   // Require {} for every new block or scope.
+  "eqeqeq"        : true,   // Require triple equals i.e. `===`.
+  "forin"         : false,  // Tolerate `for in` loops without `hasOwnPrototype`.
+  "immed"         : true,   // Require immediate invocations to be wrapped in parens e.g. `( function(){}() );`
+  "indent"        : 2,      // Specify indentation spacing
+  "latedef"       : true,   // Prohibit hariable use before definition.
+  "newcap"        : true,   // Require capitalization of all constructor functions e.g. `new F()`.
+  "noarg"         : true,   // Prohibit use of `arguments.caller` and `arguments.callee`.
+  "noempty"       : true,   // Prohibit use of empty blocks.
+  "nonew"         : true,   // Prohibit use of constructors for side-effects.
+  "plusplus"      : false,  // Prohibit use of `++` & `--`.
+  "quotmark"      : "single",  // Quotation mark consistency:
+                            // false : do nothing (default)
+                            // true : ensure whatever is used is consistent
+                            // "single" : require single quotes
+                            // "double" : require double quotes
+  "undef"         : true,   // Require all non-global variables be declared before they are used.
+  "unused"        : true,   // Warns when you define and never use your variables
+  "strict"        : true,   // Require `use strict` pragma  in every file.
+  "trailing"      : true,   // Prohibit trailing whitespaces.
+
+  // Relaxing Options //////////////////////////////////////////////////////////
+
+  "asi"           : false,  // Tolerate Automatic Semicolon Insertion (no semicolons).
+  "boss"          : false,  // Tolerate assignments inside if, for & while. Usually conditions & loops are for comparison, not assignments.
+  "debug"         : false,  // Allow debugger statements e.g. browser breakpoints.
+  "eqnull"        : false,  // Tolerate use of `== null`.
+  //"es5"           : true,   // Allow ECMAScript 5 syntax.
+  "esnext"        : false,  // Allow ES.next specific features such as const and let
+  "evil"          : false,  // Tolerate use of `eval`.
+  "expr"          : false,  // Tolerate `ExpressionStatement` as Programs.
+  "funcscope"     : false,  // Tolerate declaring variables inside of control structures while accessing them later
+  "globalstrict"  : true,   // Allow global "use strict" (also enables 'strict').
+  "iterator"      : false,  // Allow usage of __iterator__ property.
+  "lastsemic"     : false,  // Tolerate semicolon omited for the last statement.
+  "laxbreak"      : false,  // Tolerate unsafe line breaks e.g. `return [\n] x` without semicolons.
+  "laxcomma"      : true,   // This option suppresses warnings about comma-first coding style
+  "loopfunc"      : false,  // Allow functions to be defined within loops.
+  "multistr"      : false,  // Tolerate multi-line strings.
+  "proto"         : false,  // Allow usage of __proto__ property.
+  "scripturl"     : false,   // Tolerate script-targeted URLs.
+  "smarttabs"     : false,  // Allow mixed tabs and spaces when the latter are used for alignmnent only.
+  "shadow"        : false,  // Allows re-define variables later in code e.g. `var x=1; x=2;`.
+  "sub"           : false,   // Tolerate all forms of subscript notation besides dot notation e.g. `dict['key']` instead of `dict.key`.
+  "supernew"      : false,   // Tolerate `new function () { ... };` and `new Object;`.
+  "validthis"     : false,  // true: Tolerate using this in a non-constructor function
+
+  // Environments //////////////////////////////////////////////////////////////
+
+  "browser"       : false,  // Defines globals exposed by modern browsers
+  "couch"         : false,  // Defines globals exposed by CouchDB
+  "devel"         : false,  // Allow developments statements e.g. `console.log();`.
+  "dojo"          : false,  // Defines globals exposed by the Dojo Toolkit
+  "jquery"        : false,  // Defines globals exposed by the jQuery
+  "mootools"      : false,  // Defines globals exposed by the MooTools
+  "node"          : true,   // Defines globals exposed when running under Node.JS
+  "nonstandard"   : false,  // Defines non-standard but widely adopted globals such as escape and unescape
+  "prototypejs"   : false,  // Defines globals exposed by the Prototype
+  "rhino"         : false,  // Defines globals exposed when running under Rhino
+  "wsh"           : false,  // Defines globals exposed when running under WSH
+  "yui"           : false,  // Yahoo User Interface
+
+  // Legacy ////////////////////////////////////////////////////////////////////
+
+  "nomen"         : false,  // Prohibit use of initial or trailing underbars in names.
+  "onevar"        : false,  // Allow only one `var` statement per function.
+  "passfail"      : false,  // Stop on first error.
+  "white"         : false,  // Check against strict whitespace and indentation rules.
+
+  // Custom globals ///////////////////////////////////////////////////////////
+
+  "globals"       : {  }
+}

.npmignore

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+/banchmark/
+/test/
+/.*
+/Makefile
+
+

benchmark/benchmark.js

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+#!/usr/bin/env node
+
+'use strict';
+
+
+var path      = require('path');
+var fs        = require('fs');
+var util      = require('util');
+var Benchmark = require('benchmark');
+var ansi      = require('ansi');
+var cursor    = ansi(process.stdout);
+
+
+var IMPLS_DIRECTORY = path.join(__dirname, 'implementations');
+var IMPLS_PATHS = {};
+var IMPLS = [];
+
+
+fs.readdirSync(IMPLS_DIRECTORY).sort().forEach(function (name) {
+  var file = path.join(IMPLS_DIRECTORY, name),
+      code = require(file);
+
+  IMPLS_PATHS[name] = file;
+  IMPLS.push({
+    name: name,
+    code: code
+  });
+});
+
+
+var SAMPLES_DIRECTORY = path.join(__dirname, 'samples');
+var SAMPLES = [];
+
+fs.readdirSync(SAMPLES_DIRECTORY).sort().forEach(function (sample) {
+  var filepath = path.join(SAMPLES_DIRECTORY, sample),
+      extname  = path.extname(filepath),
+      basename = path.basename(filepath, extname),
+      content  = new Uint8Array(fs.readFileSync(filepath)),
+      title    = util.format('%s (%d bytes)', sample, content.length);
+
+  function onStart() {
+    console.log('\nSample: %s', this.name);
+  }
+
+  function onCycle(event) {
+    cursor.horizontalAbsolute();
+    cursor.eraseLine();
+    cursor.write(' > ' + event.target);
+  }
+
+  function onComplete() {
+    cursor.write('\n');
+  }
+
+  var suite = new Benchmark.Suite(title, {
+    onStart: onStart,
+    onComplete: onComplete
+  });
+
+  IMPLS.forEach(function (impl) {
+    suite.add(impl.name, {
+      onCycle: onCycle,
+      onComplete: onComplete,
+      defer: !!impl.code.async,
+      fn: function (deferred) {
+        if (!!impl.code.async) {
+          impl.code.run(content, function() {
+            deferred.resolve();
+            return;
+          });
+        } else {
+          impl.code.run(content, deferred);
+          return;
+        }
+      }
+    });
+  });
+
+  SAMPLES.push({
+    name: basename,
+    title: title,
+    content: content,
+    suite: suite
+  });
+});
+
+
+function select(patterns) {
+  var result = [];
+
+  if (!(patterns instanceof Array)) {
+    patterns = [ patterns ];
+  }
+
+  function checkName(name) {
+    return patterns.length === 0 || patterns.some(function (regexp) {
+      return regexp.test(name);
+    });
+  }
+
+  SAMPLES.forEach(function (sample) {
+    if (checkName(sample.name)) {
+      result.push(sample);
+    }
+  });
+
+  return result;
+}
+
+
+function run(files) {
+  var selected = select(files);
+
+  if (selected.length > 0) {
+    console.log('Selected samples: (%d of %d)', selected.length, SAMPLES.length);
+    selected.forEach(function (sample) {
+      console.log(' > %s', sample.name);
+    });
+  } else {
+    console.log("There isn't any sample matches any of these patterns: %s", util.inspect(files));
+  }
+
+  selected.forEach(function (sample) {
+    sample.suite.run();
+  });
+}
+
+module.exports.IMPLS_DIRECTORY   = IMPLS_DIRECTORY;
+module.exports.IMPLS_PATHS       = IMPLS_PATHS;
+module.exports.IMPLS             = IMPLS;
+module.exports.SAMPLES_DIRECTORY = SAMPLES_DIRECTORY;
+module.exports.SAMPLES           = SAMPLES;
+module.exports.select            = select;
+module.exports.run               = run;
+
+run(process.argv.slice(2).map(function (source) {
+  return new RegExp(source, 'i');
+}));

benchmark/implementations/deflate-gildas/index.js

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+'use strict'
+
+var deflate = require('./deflate');
+
+exports.run = function(data) {
+  return deflate(data);
+}

benchmark/implementations/deflate-imaya/index.js

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+'use strict'
+
+var deflate = require('./deflate');
+
+exports.run = function(data) {
+  return deflate(data);
+}

benchmark/implementations/deflate-zlib/index.js

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+'use strict'
+
+var zlib = require('zlib');
+
+exports.async = true;
+
+exports.run = function(data, callback) {
+  var buffer = new Buffer(data);
+  zlib.deflate(buffer, callback);
+}

package.json

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+{
+  "name"            : "pako",
+  "description"     : "zlib port to javascript - fast, modularized, with browser support.",
+  "version"         : "0.0.0",
+  "keywords"        : [ "zlib", "deflate", "inflate" ],
+  "homepage"        : "https://github.com/nodeca/pako",
+
+  "contributors"    : [ "Andrei Tuputcyn (https://github.com/andr83)",
+                        "Vitaly Puzrin (https://github.com/puzrin)" ],
+
+  "bugs"            : { "url": "https://github.com/nodeca/pako/issues" },
+  "license"         : { "type": "MIT", "url": "https://github.com/nodeca/pako/blob/master/LICENSE" },
+  "repository"      : { "type": "git", "url": "git://github.com/nodeca/pako.git" },
+
+  "main"            : "./index.js",
+
+  "devDependencies" : {
+                        "mocha":     "*",
+                        "benchmark": "*",
+                        "ansi":      "*",
+                        "zlibjs":    "*"
+                      }
+}