Use the Microsoft Edge Browser Task Manager as a starting point to your memory issue investigation. Monitor memory use in realtime with the Microsoft Edge Browser Task Manager If the experience is consistently bad, the page may be exceeding the memory capabilities of those devices. Find out what devices are popular with your users, and then test out your page on those devices. The key here is to use the RAIL model and focus on your users. The same page that runs smoothly on a high-end smartphone may crash on a low-end smartphone. There are no hard numbers here, because different devices and browsers have different capabilities. What qualifies as 'using too much memory'? But memory bloat is a bit harder to pin down. If a site is progressively using more and more memory, then you have a leak. So if the browser is garbage collecting a lot, script runtime is going to get paused a lot.Ī memory leak is easy to define. During collections, all script running is paused. Garbage collection is when the browser reclaims memory. This is possibly a symptom of frequent garbage collections. The performance of a page is delayed or appears to pause frequently. Memory bloat is when a page uses more memory than is necessary for optimal page speed. This is possibly a symptom of memory bloat. The performance of a page is consistently bad. A memory leak is when a bug in the page causes the page to progressively use more and more memory over time. This is possibly a symptom of a memory leak. The performance of a page gets progressively worse over time. Users may perceive memory issues in the following ways: Memory issues are important because they are often perceivable by users. In the spirit of the RAIL performance model, the focus of your performance efforts should be your users. See also Debug DOM memory leaks with the Detached Elements tool.

Find out when new memory is being allocated in your JavaScript heap (JS heap) with Allocation instrumentation on timeline.Identify detached DOM trees (a common cause of memory leaks) with Heap snapshot.Visualize memory usage over time with the Memory panel.Find out how much memory your page is currently using with the Microsoft Edge Browser Task Manager.Learn how to use Microsoft Edge and DevTools to find memory issues that affect page performance, including memory leaks, memory bloat, and frequent garbage collections.

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