block-event is an event loop watcher for nodejs. It alerts you with a blocked event when the eventloop stopped more times then the given threshold.
npm install block-event``
$ npm install block-event
Set up watch
`javascript
var threshold = 10; //ms
var BlockEvent = require('block-event');
var blockEvent = new BlockEvent(threshold);
blockEvent.threshold === 10; // true
blockEvent.on('blocked',function(lagtime){
console.log("Your eventloop blocked for:"+lagtime+" ms");
});
`
To stop the watcher, use stop(). It emits a watchStopped event.
`javascript
blockEvent.stop();
`
To resume the watcher use resume(). It emits a watchStarted event.
`javascript
blockEvent.resume();
`
To get the average cicyle time use avg():
`javascript
var avg = blockEvent.avg();
`
To get the maximum cicyle time use max():
`javascript
var max = blockEvent.max();
`
The default lag threshold is 10 ms.
`
$ npm test