The NavigatorConcurrentHardware mixin adds to the Navigator interface features which allow Web content to determine how many logical processors the user has available, in order to let content and Web apps optimize their operations to best take advantage of the user's CPU.
Note: This feature is available in Web Workers.
The number of logical processor cores is a way to measure the number of threads which can effectively be run at once without them having to share CPUs. Modern computers have multiple physical cores in their CPU (two or four cores is typical), but each physical core is also usually able to run more than one thread at a time using advanced scheduling techniques. So a four-core CPU may return 8. The browser may, however, choose to reduce the number in order to represent more accurately the number of Workers that can run at once
Properties
NavigatorConcurrentHardware.hardwareConcurrencyRead only- Returns the number of logical processors which may be available to the user agent. This value is always at least 1, and will be 1 if the actual number of logical processors can't be determined.
Methods
The NavigatorConcurrentHardware mixin has no methods.
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living StandardThe definition of 'NavigatorConcurrentHardware' in that specification. | Living Standard | Initial definition. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
See also
NavigatorConcurrentHardware by Mozilla Contributors is licensed under CC-BY-SA 2.5.
