Pixi js memory leak

apologise, but, opinion, you are not right..

Pixi js memory leak

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Already on GitHub? Sign in to your account. So I submitted this issue earlier today and it was closed within the hour by englercj. However, I don't believe the issue I brought up was properly understood and I'm certain that others will run into the same problem I faced. I haven't found any PIXIjs function to do so.

However, simply putting the line. This has made my memory issue completely go away and now my game runs at a cool MB of memory instead os steadily climbing to upwards of 2GB. No need to create a new issue, we can track this on This thread has been automatically locked since there has not been any recent activity after it was closed.

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Sign up. New issue. Jump to bottom. Copy link Quote reply. This is the issue I found. Function: PIXI. This comment has been minimized.

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Going to try to keep this brief, but I have been losing a lot of sleep these past five days literally trying to figure out what to do. We have a large website that consists basically of Flash files all interlinked. They have beautiful pictures, audio, interaction, the works.

pixi js memory leak

It's a NASA outreach site for kids. I was hired for many reasons as a technologist but in largest measure to help this group solve the challenge of bringing this site into the new way of doing things if there is a legitimate new way, and especially including mobile support. It is completely unacceptable to have to click twice moving from one section to another just to hear sound play when you come to the second page on mobile owing to restriction thereon against autoplay sans preceding user event.

So be it I thought. Five days and a big pile of my hair on the floor later after reading everything I didnt want to know about Javascript closures and memory leaks, and staring at Windows Resource Monitor and watching Chrome's processes' "Working Set" numbers tick up and up and up regardless of what we do--I have followed all advice given on the 'Net re. PIXI's texture. Chrome's profiler btw couldn't tell me why frame rate would slow after an hour or two of stress testing which prompted me looking at actual application memory footprint.

For this true stress test to demonstrate definitively the problems with memory management in the library, I upscaled sir bunny, by several factors so he is 20k a pop X I then wrote a script to make a folder with copies of this moderately large png each numbered sequentially which the below code then runs against.

It runs fine, after many days of figuring out just the right 'dm' routine short for 'delete main' if we only use one or a small handful of unique image file names. However, this test in which we keep loading in different assets more nearly mimics the truth of how the site will be navigated, with each module or "scene" if you will loading in its own entirely different assets so that we can put the sound events in as-needed.

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We do not want assets from the previous scene staying around and accumulating in memory. So we have no good formula for emptying everything out with Pixi it seems. I have stared for countles hours at the source, and my wife a longtime programmer here at NASA as well has done the same.

The code I wrote so far is about lines and I hate to abandon it, Pixi, Html5, and these things I have really liked about this job! It just seems like there should be a straightforward workaround of some sort??

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Solid cleanup is really desperately needed to make Pixi applications-grade and not just small one-off demo's, which are impressive but not what is going to be needed by most ongoing probably. With that, the code follows. Btw, I realize that this is a stress test, forcing much work every few seconds unlike the actual operating conditions timing-wise.

But nevertheless this is done this way by design to show that there are in point of fact huge accumulating leaks over time in the lib and people should be aware so they don't make something big only to get tricked and then stuck with a big mess on their hands. Try it. The GC never takes the memory back down. I used chrome mainly, but other browsers should be the same. Usage only continues to climb, when, if references to the DOM and otherwise were in fact being released as advertised, it should eventually stabilize and sooner than later given the attention to detail in deleting everything obvious.

The new removeChildren call when invoked on the root stage Object does not work either. So I'm guessing some sort of sticky references are hanging around, perhaps throughout Pixi?? We can't proceed if I can't see actual memory numbers decrease with simple tests like this. Performance and the user experience oft-impatient younger audience members on the site will quickly nose dive from all of the content we will throw at this site to have people to try to navigate it with these invisible lurking pitfalls.

This project was ready-made for Pixi to hit out of the park if only it could clean after itself adequately!! What a shame - I hope you can help to solve somehow?GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. I'm experiencing some memory leaks in 3. After some googling I've found that it is possible to destroy textures manually in booth cases and that seems to solve the issue. But considering that many of the textures are being generated dynamically using "generateTexture" i'm thinking that maybe i'm doing something wrong.

The question is: Do I really need to keep track off all generated textures so i can destroy them manually, or do PIXI knows somehow what are the unreachable textures and should be destroyed?

I'm also noticing some Sprites that uses "gereneteTexture" as input are not destroying their relative texture even after they and it's parents are removed Is this the expected behavior? FWIK, Pixi keeps track of the generated texture in case of a context loss, so it can re-upload your texture in the video memory, so yes, keeping track of it is necessary.

As such, the accumulation is not a leak per se. It's your duty to destroy the textures don't forget text fields you don't need anymore.

There's however a leak, check issue It's worth adding that if your game is running under Canvas that every single call to generateTexture will create a new canvas dom element every single new Text object you create does the same too. These are not pooled or recycled by Pixi, and equally are not removed from the dom either should the BaseTexture be destroyed. So if you do it a lot you'll see the dom node count go nuts over time. We implemented a PIXI. CanvasPool in Phaser in order to address this.

It's not designed for Pixi 3 but the code is there and open if you want to take a look and maybe re-purpose it for yourself. Maybe not right now, because of the leak, but once that's patched they should go away nicely.In this article we will explore common types of memory leaks in client-side JavaScript code.

We will also learn how to use the Chrome Development Tools to find them. Read on! Memory leaks are a problem every developer has to face eventually. Even when working with memory-managed languages there are cases where memory can be leaked. Leaks are the cause of whole class of problems: slowdowns, crashes, high latency, and even problems with other applications.

In essence, memory leaks can be defined as memory that is not required by an application anymore that for some reason is not returned to the operating system or the pool of free memory. Programming languages favor different ways of managing memory. These ways may reduce the chance of leaking memory. However, whether a certain piece of memory is unused or not is actually an undecidable problem.

In other words, only developers can make it clear whether a piece of memory can be returned to the operating system or not. Certain programming languages provide features that help developers do this. Others expect developers to be completely explicit about when a piece of memory is unused. Wikipedia has good articles on manual and automatic memory management. JavaScript is one of the so called garbage collected languages.

Garbage collected languages help developers manage memory by periodically checking which previously allocated pieces of memory can still be "reached" from other parts of the application. In other words, garbage collected languages reduce the problem of managing memory from "what memory is still required?

The difference is subtle, but important: while only the developer knows whether a piece of allocated memory will be required in the future, unreachable memory can be algorithmically determined and marked for return to the OS. Non-garbage-collected languages usually employ other techniques to manage memory: explicit management, where the developer explicitly tells the compiler when a piece of memory is not required; and reference counting, in which a use count is associated with every block of memory when the count reaches zero it is returned to the OS.

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These techniques come with their own trade-offs and potential causes for leaks. The main cause for leaks in garbage collected languages are unwanted references.

To understand what unwanted references are, first we need to understand how a garbage collector determines whether a piece of memory can be reached or not.

Most garbage collectors use an algorithm known as mark-and-sweep. The algorithm consists of the following steps:. Modern garbage collectors improve on this algorithm in different ways, but the essence is the same: reachable pieces of memory are marked as such and the rest is considered garbage. Unwanted references are references to pieces of memory that the developer knows he or she won't be needing anymore but that for some reason are kept inside the tree of an active root.

In the context of JavaScript, unwanted references are variables kept somewhere in the code that will not be used anymore and point to a piece of memory that could otherwise be freed. Some would argue these are developer mistakes. So to understand which are the most common leaks in JavaScript, we need to know in which ways references are commonly forgotten. One of the objectives behind JavaScript was to develop a language that looked like Java but was permissive enough to be used by beginners.

One of the ways in which JavaScript is permissive is in the way it handles undeclared variables: a reference to an undeclared variable creates a new variable inside the global object. In the case of browsers, the global object is window. In other words:. If bar was supposed to hold a reference to a variable only inside the scope of the foo function and you forget to use var to declare it, an unexpected global variable is created.

In this example, leaking a simple string won't do much harm, but it could certainly be worse. To prevent these mistakes from happening, add 'use strict'; at the beginning of your JavaScript files. This enables a stricter mode of parsing JavaScript that prevents accidental globals.

Even though we talk about unsuspected globals, it is still the case that much code is littered with explicit global variables.

These are by definition noncollectable unless nulled or reassigned.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. I have an app with renders one huge tailing sprite for background and a few thousand sprites on top of it.

The scene is static most of the time but even then my CPU and cooling fan are going wild. I noticed that for every rendering of the stage the top most container the JS heap size grows almost 3 times and then there is a forced GC immediately after that. I am attaching a screenshot of my chrome timeline. Any thoughts? If there is a sawtooth pattern it's not a leak, you would see it stair step if it was. What it does sound like is massive object allocations, most likely unnecessary.

Would be great to put. To put the reduced case in a jsfiddle as I'm sure everyone would be interested in the cause and to fix this issue. Thanks for the reply. It's more pronounced on high frame rate monitors, since a Hz monitor runs the rAF loop more often.

The trick, I've found, is to intelligently manage the need to run the loop and, possibly, to throttle the rAF loop to save on CPU cycles.

As you state, your scene is static most of the time, so the only time the loop needs to run is when something changes. For example, trigger the render loop only when UI events occur or when an animation is launched. After the animation is complete, the system can go back to idle.By JambuttersFebruary 11, in Pixi. Probably not a problem with Pixi most likely I'm just using pixi wrong and somewhere leaked but somewhere there is a memory leak and I am not sure why.

Ram usage keeps increasing and movement is very laggy even when I set to 5 from 30fps. If anyone can figure out why, thanks :D. I am very beginner js, if you have good resources on debugging please link or is it just my computer Also noted Using nodejs to host webserver. Alright, found the problem, its with setInterval, but I want to be able to use it opposed to requestframeanimation because I want to control the fps You can post now and register later. If you have an account, sign in now to post with your account.

Note: Your post will require moderator approval before it will be visible. Paste as plain text instead. Only 75 emoji are allowed. Display as a link instead. Clear editor. Upload or insert images from URL. Recommended Posts. Report post. Posted February 11, WebGLRenderer; document. Sprite PIXI. Share this post Link to post Share on other sites.

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pixi js memory leak

Reply to this topic Go To Topic Listing. Sign In Sign Up.You may have heard the phrase, "You can never be too rich, too thin, or have too much RAM. The current recommended minimum for a new system build is 8GB of RAM, with 16GB quite common these days for those who want to "future-proof," or have more advanced needs, such as multitasking, CAD, or video editing.

Our computer systems have large amounts of RAM at their disposal, all to avoid running low on this all-important resource. A shortage of memory on a desktop will grind the system to a performance halt. This creates virtual memory, which then allows the computer to continue its task. All of this shuttling of data back and forth between RAM and the slower virtual memory has a negative impact on performance, as you might guess. Despite having this overabundance of RAM in modern computer systems, there can still be situations where the system runs out of memory.

The most obvious is simultaneously running multiple memory-hogging applications—4K video editing software, or a ridiculously large number of tabs open in a browser—that use up all available memory resources.

Dealing with Memory Leaks

However, despite having adequate RAM and not running resource-intensive software, there can be another situation where all available RAM gets used and performance degrades. This is known as a memory leak, and it happens when software fails to manage the available RAM correctly.

With the computer functioning normally, RAM gets used by software in a dynamic fashion, and memory resources are allocated as needed. In a situation with a memory leak, RAM gets allocated to the software but is not freed up when no longer needed.

This is ultimately caused by a software bug. Last year, the Google Chrome browser developed a memory leak issue. Thankfully, subsequent versions of Chrome addressed it, and the issue was resolved.

Firefox has also experienced memory leaks in previous versions. What does the user experience? The system can have a myriad of symptoms that point to a leak, though: decreased performance, a slowdown plus the inability to open additional programs, or it may freeze up completely. This is often exacerbated by having lots of available memory; if the leak only consumes a few MB of RAM each minute, it could be a day or two before the problem reaches the critical level.

The solutions at this point are to close the offending process in the task manager, or a system reboot, which will free up all the RAM so that the process can start again. While a reboot as a solution will get the system running again, it does not precisely diagnose the issue, nor give the user a good idea of what happened or how to avoid it happening again.

It is analogous to lighting your lawn on fire just to get rid of some dandelions—too much treatment for the problem at hand. Tracking down a memory leak can be a difficult process. As the process terminates, it may not be an obvious issue if there is more than adequate RAM to support other processes.

This can be accomplished in Windows by using the Resource Monitor. Next, we turn our attention to the processes running that are using the memory. Rather than scrolling through the whole list, you can click "Commit KB ," which will reorder the list so that the most memory-intensive tasks appear at the top.

This makes it easy to see which software is using the most RAM. Also note that at the top of the Processes, 39 percent of physical memory was being used, indicating adequate reserves for additional processes.

pixi js memory leak

Displayed on the right side of the screen are the monitors over time, which indicate the last 60 seconds. However, it also has some significant limitations. The first is that it is not continuously monitored.

As an aside, Windows Gadgets, which were introduced in Windows Vista and continued in Windows 7, offered a gadget that did this.


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