Created a node FS pre-cacher, my node was already optimized... 1 tick slower

useless cacher

/*
    var images = new pre.cache_request('./resources/images/','*', true, function(cache) {
      handler.locals.cache = cache
    })

    pre.directoryCache( [images] )


  if( local.cache[pathto+file] != undefined ) {
    res.writeHead(200, {'content-type':mime})
    res.end( local.cache[ pathto+file ] )
    console.log( 'cache hit' )
  }
  else ... regular 

*/
// pre-cache
var fs = require('fs')
function fileCache() {





};

// will ignore the file parameter 
function directoryCache( requests ) {
  for( var each in requests ) {
    if( requests[each].log )
      console.log( 'caching ' + requests[each].dir )
    var cached = {}
    fs.readdir(requests[each].dir, function(err, files) {
      if(err) throw err;
      files.forEach(function(file){
        fs.readFile( requests[each].dir + file, function(err, blob) {
          if( err ) {
            if( requests[each].log )
              console.log( '- '+file )
          }
          else {
            cached[ requests[each].dir+file ] = blob
            if( requests[each].log )
              console.log( '+ '+file )
          }
        }) // end readFile 
      }) // end inner loop
    }) // end readdir
    requests[each].cb( cached )
  } // end loop


};

function cache_request(ndir, nf, nlog, ncb) {
  this.dir = ndir;
  this.file = nf;
  this.log = nlog;
  this.cb = ncb;
};

exports.directoryCache = directoryCache
exports.cache_request = cache_request
exports.fileCache = fileCache

/*    // let up all caching here
    handler.locals.init = function() {
      handler.jade.renderFile( handler.locals.viewDir + 'notfound.jade', null, function( err, page ) {
        console.log( err )
        if(err)
          handler.locals.errPage = 'set up an error page'        
        else
          handler.locals.errPage = page 
      })
    }
*/