EmccMaximumHeapSize and EmccInitialHeapSize seemingly has no effect?

[Matheos96]

Hi,

I wanted to try to play with the EmccInitialHeapSize and EmccMaximumHeapSize flags, but it seems like they don't have any effect at all? I tried to also turn of Jiterpreter using <BlazorWebAssemblyJiterpreter>false</BlazorWebAssemblyJiterpreter> but that too did not help. Discussion #99114 is similar but does not cover any solution and is quite old.

Maybe I am doing something wrong? I thought I would be able to verify this change by taking a heap snapshot with chrome dev tools but nothing seems to affect it. I also have a small test application that allocate 1MB at a time until it runs out of memory (.NET Exception). It constantly stops at 1767MB, no matter that setting. I run in Rider without a debugger - does it only affect release builds or something like that?

<PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
    <RunAOTCompilation>true</RunAOTCompilation>
      <EmccMaximumHeapSize>4294901760</EmccMaximumHeapSize>
      <BlazorWebAssemblyJiterpreter>false</BlazorWebAssemblyJiterpreter>
      <EmccInitialHeapSize>3145728</EmccInitialHeapSize>
  </PropertyGroup>

Blazor Web Assembly Standalone .NET 8 (8.0.407)
Microsoft.AspNetCore.Components.WebAssembly 8.0.14