Metric API v2

[Unitech]

var a = io.metric('mon_metric')
var b = io.histogram('mon_histogram')
var c = io.counter('mon_counter')
var d = io.meter('mon_meter')

a.set('value')

/// 2nd way

io.metric({
  name: g_key,                                                                                                                                                           
  value: function() {
    return gpu_stats[g_key];
   }
})

// 3rd way (multi metric)

io.metrics([{
  name: g_key,                                                                                                                                                           
  value: function() {
    return gpu_stats[g_key];
   }
}, {
  name: g_key_2,                                                                                                                                                           
  value: function() {
    return gpu_stats[g_key_3];
   }
}])

[vmarchaud]

Issue moved to keymetrics/pm2-io-apm #98 via ZenHub