onmessage = function(event)
{
var count = 10000;
var chunk = new Uint8Array(1);
chunk[0] = 0;
var blob = new Blob([chunk]);
for (var i = 0; i < count; i++) {
var reader = new FileReader();
reader.readAsArrayBuffer(blob);
}
postMessage({});
for (var i = 0; i < count; i++) {
var reader = new FileReader();
reader.readAsArrayBuffer(blob);
}
}