Published on November 4, 2022

Monitor your CPU usage in your JavaScript application

Monitor your CPU usage in your JavaScript application

When building a JavaScript application, we often have to think and deal with performance issues. Performance is a critical aspect of any application and can significantly affect the user experience. One of the most common performance issues for JavaScript applications is when the workload is CPU bound. This means that the application spends most of its time waiting for the CPU to complete a task.

In such cases, monitoring our JavaScript application's CPU usage and setting up a system to track when use goes above a certain threshold is essential. This way, we can always be aware of the performance of our application. Furthermore, in cases of a performance issue, for example, when the CPU usage goes above a certain threshold, we can take immediate action and fix the problem before it becomes a significant issue.

Fortunately, here at LogSnag, we have created a powerful solution for this problem. LogSnag is a powerful, real-time event tracking tool that works seamlessly with JavaScript. With LogSnag, you can set up event tracking for anything you want and monitor things like your CPU usage in real-time. In addition, you can set up a rule to notify you and your team when the CPU usage goes above a certain threshold. This way, you will always be aware of the performance of your application, and you can take immediate action if needed.


Setting up LogSnag

  1. Sign up for a free LogSnag account.
  2. Create your first project from the dashboard.
  3. Head to settings and copy your API token.

JavaScript code snippets

To track your CPU usage, you can use the following code snippet Please don't forget to replace the YOUR_API_TOKEN with your API token and update the project and channel names.

Using JavaScript with Fetch
var myHeaders = new Headers();
myHeaders.append("Content-Type", "application/json");
myHeaders.append("Authorization", "Bearer YOUR_API_TOKEN");

var raw = JSON.stringify({
"project": "my-saas",
"channel": "status",
"event": "High CPU Usage",
"description": "CPI usage has been over 90% for the last 5 minutes",
"icon": "🚨",
"notify": true
});

var requestOptions = {
method: 'POST',
headers: myHeaders,
body: raw,
redirect: 'follow'
};

fetch("https://api.logsnag.com/v1/log", requestOptions)
.then(response => response.text())
.then(result => console.log(result))
.catch(error => console.log('error', error));
Using JavaScript with jQuery
var settings = {
"url": "https://api.logsnag.com/v1/log",
"method": "POST",
"timeout": 0,
"headers": {
"Content-Type": "application/json",
"Authorization": "Bearer YOUR_API_TOKEN"
},
"data": JSON.stringify({
"project": "my-saas",
"channel": "status",
"event": "High CPU Usage",
"description": "CPI usage has been over 90% for the last 5 minutes",
"icon": "🚨",
"notify": true
}),
};

$.ajax(settings).done(function (response) {
console.log(response);
});
Using JavaScript with XHR
// WARNING: For POST requests, body is set to null by browsers.
var data = JSON.stringify({
"project": "my-saas",
"channel": "status",
"event": "High CPU Usage",
"description": "CPI usage has been over 90% for the last 5 minutes",
"icon": "🚨",
"notify": true
});

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function() {
if(this.readyState === 4) {
console.log(this.responseText);
}
});

xhr.open("POST", "https://api.logsnag.com/v1/log");
xhr.setRequestHeader("Content-Type", "application/json");
xhr.setRequestHeader("Authorization", "Bearer YOUR_API_TOKEN");

xhr.send(data);

JavaScript integration details

We believe that event tracking should be simple and accessible to every developer and team. Therefore, we have worked hard to create the next generation of event tracking tools. As a result, LogSnag is flexible and easy to use, making it a great companion for your JavaScript applications.

In addition to real-time event tracking, LogSnag provides powerful features such as cross-platform push notifications, event filtering, user and product journeys, charts, insights, and more.

LogSnag provides a generous free plan to get you started with event tracking. You can also check out our pricing page to see our paid plans. So please give us a try and let us know what you think!

Other use-cases for LogSnag

  1. Monitor your CI/CD build status for your JavaScript application
  2. Monitor when database goes down in your JavaScript application
  3. Monitor high disk usage in your JavaScript application
  4. Monitor when a user changes their email address in your JavaScript application
  5. Monitor failed logins in your JavaScript application
  6. Monitor failed payments for your JavaScript application
  7. Monitor memory usage in your JavaScript application
  8. Monitor MySQL downtime in your JavaScript application
  9. Monitor when a new feature is used in your JavaScript application
  10. Monitor your Postgres downtime in your JavaScript application
  11. Monitor Redis downtime in your JavaScript application
  12. Monitor suspicious activity in your JavaScript application
  13. Monitor when a user exceeds the usage limit for your JavaScript service
  14. Monitor when a user is being rate limited in your JavaScript application
  15. Get a notification when your JavaScript code is done executing
  16. Send push notifications to your phone or desktop using JavaScript
  17. Track canceled subscriptions in your JavaScript application
  18. Track your JavaScript cron jobs
  19. Track when a file is uploaded to your JavaScript application
  20. Track when a form is submitted to your JavaScript application
  21. Track payment events via JavaScript
  22. Track user sign in events in JavaScript
  23. Track user signup events via JavaScript
  24. Track waitlist signup events via JavaScript
View all common use-cases with JavaScript