Thanks for the info! Do you see more cpu time spikes when the sorting happens?
Honestly I couldn’t tell you, since a full server has a lot going on all the time in the player list. Can do more investigation if that is the suspected cause.
Straight from the script profiler, this tends to happen every ~20 or so seconds, bringing my FPS down to 10 from 60
This was recorded (May 10th) on the client, I am on Desktop PC
It’s always this exact same thing that shows up when it causes lag, and in the microprofiler, it looks the exact same as @Lucatacos2213 's microprofiler
It only tends to occur when the place has 25+ users in a server at a time and happens irregularly, starts and then repeats, only to stop entirely after about a minute but then starts lagging again eventually,
it might be caused when a player leaves? Could’ve just been a coincidence that it lagged when someone left
I’m experiencing this on a game I work on with another person,
I run at 60 fps when I’m alone in the server
idk if this info helps but:
gpu: GTX 1060
cpu: AMD 5500
ram: 16
edit:
Experience chat main loves to cause issues aswell, dont know why
1 Like
Bump
1 Like
Here is similar topic Major Issue with Roblox performance and frame rate - #33 by Laverdio
It is about input issue when you press the key and rotate camera with mouse FPS will drop. It is especially visible on low end devices. You can check it on your own and see that in microprofiler when you doing this PlayerListManager or Unkown script takes a lot of ‘ms’ time. And it happens in every game.
Thanksfully roblox guy said they investigating it.
2 Likes
We just shipped our own player list in Drive World, however I’m still seeing micro profiler tags for PlayerListManager. Why is this still running when it’s completely disabled?
9 Likes
From looking at the CoreScripts briefly, I think it still runs the functions related to the player list in the background regardless of whether it is enabled or not.
1 Like
Bump, this still occurs. Repro steps are same as the original thread, and happens on PC for us. The StatsItem objects are being indexed by their DisplayName, then a method call to GetValue, followed by a method call to GetChildren.
1 Like
Opening and closing the player list makes it even worse.
2 Likes
There should be a minimized footprint of the PlayerListManager when it is not being used, I don’t like how much performance it takes away. I am getting the same problem on PC
4 Likes
Bump, still occurs and it’s very annoying. It takes up 2ms with just four players in a lobby, which is absurd. that’s 12,5% of the frame budget to keep the game running at 60 FPS; and over 25% if you want to have 140 FPS!
5 Likes
Bump, this also is something that I’m dealing with. This is a really strange bug that has been eating up CPU usage, I use quite a few Teams and use a points counter on a leaderstat folder. Kinda considering dropping that.
1 Like
2 Likes
It’s really maddening how this still isn’t addressed at all, two different engineers in two different bug reports responded to it, but none managed to get it fixed. Excuse my language, but this is very frustrating.
@DrRanchDressing @CharlieGordonnn, can you guys continue looking into this issue please?
7 Likes
Another year later - the player list updating is still by far the worst performance hog in our entire game. This single player list script is worse than our 100+ game systems combined. How is this acceptable???
4 Likes
Hey @ItzAidfoplays390 - thanks for the ping, apologies for the late response. Yes there are multiple investigations involving Roblox UI performance in-experience and multiple engineers working to resolve these issues.
Performance of various Roblox UI components such as PLM is a top concern for our teams and we are working to resolve it as soon as we can. I will reach out to the engineers more closely involved with this work and see what we can do to provide more regular updates to the community.
We understand your frustration and are working earnestly to resolve this. Thank you for your patience! 
5 Likes
This is what happens when the most bloated frameworks in existence are forced into things they do not need to be in. Not everything needs to be a web dev pattern. Someone told the gui framework to “update” the leaderboard every once in a while without thinking about how that update will be done. The obscure spaghetti code implementation decided that it should destroy and recreate ALL gui instances associated with the player list every “update”. 13 ms is roughly 650 instances being destroyed and re created. Even when the list is “disabled”, this is probably as naively done as merely parenting to nil without disabling the update code, so the core scripts are still destroying and creating instances that aren’t even rendered.
3 Likes
I appreciate the reply and confirmation that the performance issues of in-experience UI components is been investigating and worked on by multiple engineers.
Though, I’ve expected and hoped for a much faster resolution to this issue especially since as you’ve said that it is top concern for the teams that work on this and that they’re trying to resolve it as soon as they can. These issues has been reported since a long while and it’s a pity that they still haven’t been fixed yet and that we aren’t getting constant updates about them that would at least give us the impression that they’re actually being worked on and not ignored or forgotten.
I just hope that this all can be resolved quickly and that I wouldn’t see the React Scheduler or ExperienceChatMain or PlayerListManager or any of the Corescripts taking up huge frame times and tanking frame rates anymore.
These issues shouldn’t have happened and shouldn’t happen again if they get resolved, why would UI components with poor performance be released out to the public, has there been no testing to them or was it thought that it was just a good idea releasing them with that state?
To be more specific, who even thought it was a good idea using React/Roact everywhere on UIs on Roblox even though this framework is known for having poor performance and optimization, this is besides that Roblox got their very own optimization and implementation issues that makes this even worse. This is just unnecessary. We don’t need web stuff everywhere, we don’t need React/Roact on Roblox, pretty sure their cost overweights their outcomes. Roblox was fine without it, and I am pretty sure anything you can make through them can be made natively using Luau.
6 Likes
Hey @ItzAidfoplays390 thank you very much for sharing your feedback on this. We recognize the negative sentiment these performance issues are causing and the impact its having on creators on the platform
We are treating this matter with urgency and are putting a plan together to provide more frequent updates on our progress towards resolving these issues.
Thanks again!
5 Likes