# GrainCollectionOptions.MemoryUsagePollingPeriod

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.configuration.graincollectionoptions/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.configuration.graincollectionoptions/properties/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Runtime/Configuration/Options/GrainCollectionOptions.cs)

```csharp
public TimeSpan MemoryUsagePollingPeriod
```

The interval at which memory usage is polled.