High CPU & Ram usage on specific page.

[jinmvp]

Hi, recently i've looking for the solution for my app high CPU usage. I ended up with the conclusion that the URL web page is the main reason and im using WinForms with CefSharp.

What version of the product are you using?

Nuget Version : 105.3.330

What architecture x86 or x64?: x86
On what operating system? : Win 10 x64
Are you using WinForms, WPF or OffScreen? : WinForms

What steps will reproduce the problem?
The URL i have problem with:
HIGH CPU URL

This will cause high CPU & RAM usage when navigate to this URL.

My CefSharp command lines im using:

settings.CefCommandLineArgs.Add("disable-image-loading", "1");
settings.CefCommandLineArgs.Add("--disable-notifications");
settings.CefCommandLineArgs.Add("--use-gl=swiftshader");
settings.CefCommandLineArgs.Add("--disable-gpu");

What is the expected output? What do you see instead?
Expected LOW CPU usage. I only see high cpu usage.

What i've tried:
#3892

[amaitland]

Converted to Discussion as this is unlikely a bug in CefSharp, bug report was also incomplete. A new issue can be opened if code changes are required.

There are quite a number of pieces of the Bug Report Template you skipped over.

Please only create an issue if you can reproduce the problem with version 107.1.90 or greater.

As per the Bug Report Template.

Have you tested with the current supported version? M108 is the current version.

Does the problem reproduce using the MinimalExample?

Did you test with the MimimalExample?

My CefSharp command lines im using:

GPU Acceleration should be left enabled under normal circumstances, Swiftshader is no longer supported by Chromium, setting a specific --use-gl is not recommended.

Make sure your application has an [app.manifest(https://github.com/cefsharp/CefSharp/wiki/Quick-Start-For-MS-.Net-4.x#40-add-appmanifest-to-your-application) with the compatibility entries so GPU detection works correctly.

Test with the MinimalExample as it has an app.manifest

Expected LOW CPU usage. I only see high cpu usage.

How does Chrome behave?

What i've tried:
#3892

Tried what exactly? Just linking to a discussion doesn't tell me exactly what you have tried.

[jinmvp]

I still got the problem with 108.4.130.

I also tested with MimimalExample and got the same problem.

I tested again with only

settings.CefCommandLineArgs.Add("disable-image-loading", "1");

I tried to deleted 3 files

• 'vk_swiftshader.dll'

• 'vk_swiftshader_icd.json'

• 'vulkan-1.dll'
  My app has app.manifest file with
  <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>

[amaitland]

I also tested with MimimalExample and got the same problem.

You'll need to test with the CEF Sample Application(cefclient) then. Details at https://github.com/cefsharp/CefSharp/blob/master/CONTRIBUTING.md#cefsharp-vs-chromium-embedded-frameworkcef

[jinmvp]

I found the problem, turned out its the page im trying to load using too much JS and taken alot of CPU resources to calculated.

[amaitland]

Does the problem reproduce using the CEF Sample Application(cefclient)?

How does it behave in Chrome?

[jinmvp]

Yes the problem is still there with Chrome and CEF Sample Application(cefclient), the URL using JS to calculated so it using alot of CPU resources.