aspnetcore: asp.net core ServerGarbageCollection not working

Asp.net core 1.1.2 windows server 2016

after migrating my project from vs 2015 to 2017 i made a release and published my website but now memory usage constantly grows in production server.

At vs 2015 i had this in my project.json :

  "runtimeOptions": {
    "gcServer": true
  },

but after migrating to vs 2017 csproj is like this

  <PropertyGroup>
    <TargetFramework>netcoreapp1.1</TargetFramework>
    <PreserveCompilationContext>true</PreserveCompilationContext>
    <AssemblyName>xxxxx</AssemblyName>
    <OutputType>Exe</OutputType>
    <PackageId>xxxxx</PackageId>
    <UserSecretsId>xxxxxxx</UserSecretsId>
    <RuntimeFrameworkVersion>1.1.2</RuntimeFrameworkVersion>
    <PackageTargetFallback>$(PackageTargetFallback);dotnet5.6;dnxcore50;portable-net45+win8</PackageTargetFallback>
    <ServerGarbageCollection>true</ServerGarbageCollection>
  </PropertyGroup>

i also changed csproj to this in another test:

  <PropertyGroup>
    <ServerGarbageCollection>true</ServerGarbageCollection>
    <ConcurrentGarbageCollection>true</ConcurrentGarbageCollection>
  </PropertyGroup>

and runtimeconfig.template.json to this :

{
  "gcServer": true,
  "System.GC.Server": true,
  "gcConcurrent": true
}

but garbage collection is not working. any idea what is going wrong?

About this issue

Original URL
State: closed
Created 7 years ago
Reactions: 1
Comments: 18 (5 by maintainers)

Most upvoted comments

How does the GC view the machine specs when running in a Docker container? Does every run-time think it has use of all the host resources? I ask because I’m running a number of simple APIs (microservices) on Docker on Ubuntu, and each container is consuming 500-900 Mb of memory. It’s not a powerful server - 16Gb/4 cores at the moment. CPU usage is under 5% but I’m hitting memory limits. I’ve not been able to find a solution yet. I can tell Docker to limit the memory available to each container, but what I see is that they don’t seem to use less memory, they just start using swap space, which will hurt their performance.

Ettery on Sep 21, 2017