Hello. I have: Azure App Service (Linux Container) Azure App Service Plan (Basic B2, 3.5GB memory) When I try to get available memory: [HttpGet] public IActionResult Get() { var gcInfo = GC.GetGCMemoryInfo(); var response = new Dictionary

Azure AppService (Linux Container) memory limit

Ivan Navalotski 0

Hello.

I have:

Azure App Service (Linux Container)
Azure App Service Plan (Basic B2, 3.5GB memory)

When I try to get available memory:

[HttpGet]
public IActionResult Get()
{
    var gcInfo = GC.GetGCMemoryInfo();
    var response = new Dictionary

Laxman Reddy Revuri 2,390 Reputation points Microsoft Vendor

2025-02-06T17:22:00.65+00:00

Hi @Ivan Navalotski
Thanks for the question and using MS Q&A platform.
The memory limit for Azure App Service on Linux Containers is determined by the App Service Plan. In your case, with the Basic B2 plan, you have a total of 3.5GB of memory, but some of it is used by system overhead.

If multiple apps are running on the same App Service Plan, they share the allocated memory. This means the available memory for each app depends on the number of apps running and their resource usage.

To check memory usage in your application, you can use GC.GetGCMemoryInfo(), which provides insights into the .NET Garbage Collector (GC) heap memory. However, for total system memory, you should read /sys/fs/cgroup/memory/memory.limit_in_bytes.

You can configure WEBSITE_MEMORY_LIMIT_MB to restrict your app’s memory usage within the container. However, this limit cannot exceed the total memory allocated by the App Service Plan.
references:
https://learn.microsoft.com/en-us/aspnet/core/performance/memory?view=aspnetcore-9.0#sample-display-memory-usage-app
https://learn.microsoft.com/en-us/azure/app-service/configure-custom-container?tabs=debian&pivots=container-linux#preview-limitations
Laxman Reddy Revuri 2,390 Reputation points Microsoft Vendor

2025-02-10T16:33:55.8133333+00:00

Hi @Ivan Navalotski
We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Laxman Reddy Revuri 2,390 Reputation points Microsoft Vendor

2025-02-11T13:38:04.0166667+00:00

Hi @Ivan Navalotski
We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.

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Azure AppService (Linux Container) memory limit

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