Measuring performance between high resolution timers
30th Sep 2013
Here's a quick tip for doing some simple performance measuring in Javascript. If you want to see how long a particular job takes you can use the new performance api like so:
Mark a starting point
window.performance.mark('custom_name')
End and measure
Once the job has completed you can tell the performance api to create a measurement between the current time and the mark you ceated earlier.
window.performance.measure('custom_measure', 'custom_name')
Grab the details
You can then get all the measurement information.
window.performance.getEntriesByName('custom_measure')
here is an example of the output
