# GetTotalSizeOfNonASRMReadsBytes(bool)

> Returns the amount of data (in bytes) read through systems other than the AsyncReadManager.

## Definition

* **Type:** Method
* **Namespace:** [Unity.IO.LowLevel.Unsafe](/engine/6000.6/script-reference/unity/io/lowlevel/unsafe.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public static ulong GetTotalSizeOfNonASRMReadsBytes(bool emptyAfterRead)
```

### Parameters

**** (\[bool]\(https\://learn.microsoft.com/dotnet/api/system.boolean)): Set to `true` to reset the underlying data counter to zero after calling this function. Set to `false` if you want each call to this function to return the running, cumulative total.

### Returns

| Type                                                          | Description                                                                                                                                                                                                                                                               |
| ------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [ulong](https://learn.microsoft.com/dotnet/api/system.uint64) | Number of bytes of data read through systems other than the [AsyncReadManager](/engine/6000.6/script-reference/unity/io/lowlevel/unsafe/asyncreadmanager.md) since you started metrics collection or you cleared this data counter by setting `emptyAfterRead` to `true`. |