# StreamQueueCheckpointerOptions Properties

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.streamqueuecheckpointeroptions/)

## CheckpointComparer {#checkpointcomparer-4562d9cd}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.streamqueuecheckpointeroptions/properties/checkpointcomparer-4562d9cd/)

[Source](https://github.com/dotnet/orleans/blob/8bc9fd244427351ad24ccc039a9e7642a42c1cc4/src/Orleans.Streaming/Checkpointers/StreamQueueCheckpointerOptions.cs)

```csharp
public IComparer<string>? CheckpointComparer
```

Gets or sets the comparer used to prevent a checkpoint from moving backwards.

## PersistInterval {#persistinterval-69e8b7b8}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.streamqueuecheckpointeroptions/properties/persistinterval-69e8b7b8/)

[Source](https://github.com/dotnet/orleans/blob/8bc9fd244427351ad24ccc039a9e7642a42c1cc4/src/Orleans.Streaming/Checkpointers/StreamQueueCheckpointerOptions.cs)

```csharp
public TimeSpan PersistInterval
```

Gets or sets the minimum interval between checkpoint writes.