Navigator.hardwareConcurrency

Category: Performance
Type: New or changed feature
Status: Enabled by default (Chrome 37)
Intent stage: None

Summary

This is a new attribute on the Navigator object. It returns the number of tasks that can be run efficiently in parallel on the current system under ideal circumstances.

Standards & signals

Specification: http://wiki.whatwg.org/wiki/NavigatorCores
Firefox: No signal
Safari: Shipped/Shipping
Web developers: Positive
Tracking bug: https://code.google.com/p/chromium/issues/detail?id=369629

Docs: http://wiki.whatwg.org/wiki/NavigatorCores

Samples: http://wg.oftn.org/projects/core-estimator/demo/

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