var times = 5000000
var argc = process.argv.length // node, path
if ( argc > 3 ) process.exit( 1 )
if ( argc == 3 ) times = Number( process.argv[2] )

function instant() {
     return new Promise(function(rs) {
         setImmediate(rs);
     });
}

async function l() {
    var hrstart = process.hrtime()
    for ( var i = 0; i < times; i += 1 )
         await instant();
	hrend = process.hrtime( hrstart )
	var dur = (1000000000 * hrend[0] + hrend[1]) / times
	console.log( dur )
}

l();

// Local Variables: //
// tab-width: 4 //
// compile-command: "nodejs node_await.js" //
// End: //