Bug Report cef-bootstrap.exe eating CPU

S

Suchos

New Member
Hi,
in last 2 weeks, i get sometimes problem, when my OBS Studio (64bit) makes 3 processes "cef-bootstrap.exe." Each of it eats 30% of my CPU and completely freez my PC. As i found, this process has to do something with browser source (TwitchAlerts in my case). And when i have this bug, alerts not working. Sometimes simply restarting OBS helps, but sometimes i have to restart whole PC.

n9b9Rb7.png
 
Hi,

exactly the same thing is happening to me. OBS Studio starts three instances of cef-bootstrap.exe. Each one takes about 25% of my CPU. If I switch them off and change the scene collection, they will restart. Sometimes I'm lucky when I restart OBS, sometimes not. Already tried things like cleaning the cache or reinstalling OBS. Nothing really helps.

I'm not 100% sure, but this might have occured with the last update to version 18.0.1.

If it helps, here are my system specs:

- i5-3450 3.10 GHz
- AS Rock H77 Pro 4 Motherboard
- 8 GB RAM
- msi GTX 970
- Win 10 64bit

Would highly appreciate if someone can give a hint how to fix this issue.
 
cef-bootstrap is the browser source. Whatever websites you added to your browser source processes is what is causing the issue.
 
Have this same problem, but a loot more Cef-Bootstrap.exes open :/
http://www.mediafire.com/view/2gbl06l17b6pm9l/17x_Cef-Bootstrap.exes_Active.._Not_fun_and_i_haven't_done_any_changes_to_Obs_since_installed._After_install_had_1x_exe..jpg Here can see how many & Silly long link when clicked "copy link" on the site :o Log files from today 3.8.2017 here: I hope it's the right one as i chose "Upload Log Files" from the Client. Also 3x Web Browser .exes open & 2x of them eat the normal'ish looking amount of Resources.

I only restarted Rig & then clicked once on Mozilla @Quick launch bar. Usually processes that i have running is max 42 after have Obs, Clementine & Evolve running. Progs that i launch manually. This is crazy :o :/ Assistance Required. https://gist.github.com/4bda636e0bb009cc096e29278b76929d

Kind Regards: Terry
 
Last edited:
Holy crap dude, you know you can use "Add Existing" to add the same source to multiple scenes at once, right? Every new browser source you add will spawn a new cef-bootstrap.exe and load the page you're trying to display into it.

Delete all those duplicate sources and re-add them to your scenes using Add Existing. You also don't need a new game capture source for every single game. Looking at your setup, you can reduce your entire scene collection down to 2 scenes.
 
Suchos said:
Hi,
in last 2 weeks, i get sometimes problem, when my OBS Studio (64bit) makes 3 processes "cef-bootstrap.exe." Each of it eats 30% of my CPU and completely freez my PC. As i found, this process has to do something with browser source (TwitchAlerts in my case). And when i have this bug, alerts not working. Sometimes simply restarting OBS helps, but sometimes i have to restart whole PC.

n9b9Rb7.png
Click to expand...
This issue all the sudden presented itself to me today! WTF so annoying. i read through this post and disabled things that weren't being used ect. But i have streamed everyday this month and all the sudden im getting high encoding due to this issue. I tried all suggestions in this post and it didn't change anything. Im hoping an update fixes this that's usually how it goes.
 
MonsterMax said:
This issue all the sudden presented itself to me today! WTF so annoying. i read through this post and disabled things that weren't being used ect. But i have streamed everyday this month and all the sudden im getting high encoding due to this issue. I tried all suggestions in this post and it didn't change anything. Im hoping an update fixes this that's usually how it goes.
Click to expand...

If you're having issues with cef-bootstrap using a lot of CPU, that's browser source, which means it's the pages you're loading into it having issues, not OBS. Updates won't fix those kinds of issues.
 
i know thank you
Fenrir said:
If you're having issues with cef-bootstrap using a lot of CPU, that's browser source, which means it's the pages you're loading into it having issues, not OBS. Updates won't fix those kinds of issues.
Click to expand...
i know thank you. its just odd that all the sudden it started happening. I disabled kappagen from all my scenes that seems to be taking the most cpu usage up? back to just my follower alerts and stream labels.
 
Wanted to let people know "the jar" was causing my issues all the sudden. its because i haven't emptied it out at all since i have been using it.
 
Yea kappagen used 10 % cpu and the jar sometimes get to 12%..... Can't they make it not use cpu? like do the calculation on the server? :D
 
After reviewing this page, I went through all of my Scenes, going through every source I had, and found 3 that I still had "Shutdown Source when not visible" unselected. Selected it, BAM, goodbye 3 cef-bootstrap.exe's hogging up my resources every time I ran OBS Studio. Thanks guys!

For anyone still having issues, here are some before and after so you can see it.
2018-04-11_13-09-53.png
2018-04-11_13-10-10.png
 
You must log in or register to reply here.
Back
Top