function getSocketCount(sockets)
{
    var ret = {},
        keys = Object.keys(sockets);
    for(var k=0; k<keys.length; k++)
    {
        console.log(keys[k]);
        ret[keys[k]] = sockets[keys[k]].length;
    }
    return ret;
}

console.log('SOCKETS:',getSocketCount(http.globalAgent.sockets),getSocketCount(https.globalAgent.sockets));