---
title: defaultMaxConcurrentOperationCount
framework: foundation
role: symbol
role_heading: Type Property
path: foundation/operationqueue/defaultmaxconcurrentoperationcount
---

# defaultMaxConcurrentOperationCount

The default maximum number of operations to invoke concurrently in a queue.

## Declaration

```swift
class var defaultMaxConcurrentOperationCount: Int { get }
```

## Discussion

Discussion The operation queue determines this number dynamically based on current system conditions.

## See Also

### Managing the Execution of Operations

- [qualityOfService](foundation/operationqueue/qualityofservice.md)
- [maxConcurrentOperationCount](foundation/operationqueue/maxconcurrentoperationcount.md)