---
title: gpuEndTime
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtlcommandbuffer/gpuendtime
---

# gpuEndTime

The host time, in seconds, when the GPU finishes execution of the command buffer.

## Declaration

```swift
var gpuEndTime: CFTimeInterval { get }
```

## Discussion

Discussion You can calculate how much time the GPU spends running a command buffer by subtracting gpuStartTime from this value. Both values are relative to system mach time. The GPU start and end times remain 0.0 until the GPU finishes running the command buffer. Check this value after the waitUntilCompleted() method returns, or within a completion handler passed to the addCompletedHandler(_:) method.

## See Also

### Checking execution times on the GPU

- [gpuStartTime](metal/mtlcommandbuffer/gpustarttime.md)