Higher RAM usage in NETCore

Is there an existing issue for this?

• I have searched both open/closed issues, no issue already exists.

CefSharp Version

120.2.50

Operating System

Windows 11

Architecture

x86

.Net Version

.NET 6.0

Implementation

WinForms

Reproduction Steps

Create minimal application that uses CefSharp and build it both for .NET Framework and .NET Core.

Expected behavior

Both versions should take a similar amount of RAM.

Actual behavior

There's a 20-30% difference between the two versions' working set.

See this table (taken from Process Explorer):

.NET 6:

Process name	Private Bytes	Working Set
Chromium.exe	37,292 K	99,908 K
CefSharp.BrowserSubprocess.exe	101,244 K	85,808 K
CefSharp.BrowserSubprocess.exe	21,888 K	34,820 K
CefSharp.BrowserSubprocess.exe	23,264 K	42,092 K
CefSharp.BrowserSubprocess.exe	25,764 K	43,848 K
CefSharp.BrowserSubprocess.exe	28,040 K	58,440 K

.NET 4.7.2:

Process name	Private Bytes	Working Set
Chromium.exe	35,532 K	80,800 K
CefSharp.BrowserSubprocess.exe	103,972 K	75,220 K
CefSharp.BrowserSubprocess.exe	21,380 K	32,504 K
CefSharp.BrowserSubprocess.exe	20,404 K	25,964 K
CefSharp.BrowserSubprocess.exe	24,264 K	34,704 K
CefSharp.BrowserSubprocess.exe	26,220 K	48,696 K

This increases even further when I actually start browsing in either program.

Regression?

No response

Known Workarounds

No response

Does this problem also occur in the CEF Sample Application

Not Tested

Other information

No response

まず、Windows 11 x86 上で .NET 6.0 および .NET Framework 4.7.2 を使用して、報告された最小構成の CefSharp WinForms アプリケーションを再現します。Process Explorer を使用して、閲覧前および閲覧中の Chromium.exe と CefSharp.BrowserSubprocess.exe の private bytes と working sets を比較します。20～30% の差の原因を特定し、各 runtime のメモリ使用量を同程度にするか、確認済みの runtime の制限事項を文書化できれば完了です。