Kudos and thanks to my good buddy Sean Kennedy who clued me into this. View The Great Suspender on the Chrome Extension Store its a complement that auto suspend unused tabs, using the tab discard API described on the article. I can't recommend The Great Suspender strongly enough. It took my Chrome memory usage from 11 gigs down to a fraction of that. This essentially kills the memory footprint for tabs you have open but aren't using. The Great Suspender is a Chrome extension that automatically suspends tabs that haven't been active recently (yes this period is configurable). I regularly see Chrome hitting 11 plus gigs of memory usage (on a 16 gig box).Īnd this brings us to, wait for it, The Great Suspender. From a technical perspective although the HTML that makes up a web page is generally tiny, web pages are frighteningly complex data representations and they are actually pretty damn big. It enables you to manually discard all open tabs except. The issue, as with a big fraction of most computer issues, is memory. The Tab Suspender is an extension for Google Chrome, Mozilla Firefox and other supported web browsers. What about Safari, Chromium, FireFox, etc. And so if I have a browser window open with 30 tabs, well, that's just 30 sheets of paper, right? And my computer can certainly handle 30 pieces of paper, right?īut if I have 10 browser windows open, each with 30 tabs, that's 300 pieces of paper. ![]() Var now = d.getHours()+""+d.getMinutes()+""+d.getSeconds()+""+d.Now from a rationalization perspective, I view urls on the Internet as pieces of paper. Have functionality to set timeout for suspender. you can also grab the interval/timeout by an id. A very lightweight tab suspender to suspend inactive tabs that reduces an overall memory usage of Firefox. ![]() for interval, it will update the millisecond when it runs the function. While you have suspended some of the tabs, you can still continue to browse other tabs normally. Here is my solution which gets the current millisecond, and compares it to the millisecond that the function was created. ![]() It's sad that there is no built-in method to turn full JavaScript performance on/off by default, yet, crypto miners can hijack all your computing threads using Web Workers without any prompt. I play them, on user-demand, with Howler.js: function performance_trick() (They include -58db noise, -60db doesn't work) Here's two empty audio loops I created for this purpose, you can use them freely, commercially: I need unlimited performance on-demand for a browser game that uses WebSockets, so I know from experience that using WebSockets doesn't ensure unlimited performance, but from tests, playing an audio file seems to ensure it The Chromium insider also clarified that aggressive throttling will be automatically disabled for all background tabs “playing audio” as well as for any page where an “active websocket connection is present.” Click the Tab Suspender extension button to manage your tab suspension. This step isn't necessary on other browsers. Other interesting Firefox alternatives to The Great Suspender are Tab Wrangler, UnloadTab, Dustman and Total Suspender. ![]() With the source of that comment found here: Add the Workona Tab Suspender extension to your browser: Google Chrome Microsoft Edge Firefox If you use Chrome, pin the Tab Suspender extension so you can access it easily. If that doesn't suit you, our users have ranked more than 10 alternatives to The Great Suspender and seven of them are available for Firefox so hopefully you can find a suitable replacement. I discovered it after reading this comment: How to make JavaScript run at normal speed in Chrome even when tab is not active? Playing an empty sound forces the browser to retain the performance. Has anyone encountered this? Would there be there a workaround for this suspension/slowing down? Would you call it a bug and should I file it as such? It would mean that we can't run background tasks, like for example checking periodically on a server using XHR calls and setInterval (I suspect to see the same behavior for setInterval, will write a test if time is with me). Couldn't find much on the internet on the subject. So it looks like Chrome suspends or at least slows down javascript execution in a tab that has no focus. It looks like the timeouts have been running a lot slower. Now if I run the test in Chrome and let it run in a background tab (so, switching to another tab and browse on there), returning to the test and inspecting the results (if the test finished) they are dramatically changed. Now I noticed that (as expected) setTimeout is not very accurate but for most appliances not dramatically inaccurate. I was testing the accuracy of setTimeout using this test.
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