Does anyone know how to read browser tab memory consumption?

[Pieras2]

Some of my E2E tests are done the way that take longer time, clicks many places etc.
I noticed that memory consumption increased with clicking.

Is there any way to read memory consumption of a browser's tab?
When testing manually we can hit shift + escape and we have a browser's window where we can monitor memory used.
I would like to write some code that reads it - but I don't want to check the browser's PID as it would take whole consumption of the browser.

[Dharin-shah]

Hey, for chrome this is something that can be explored more .
https://stackoverflow.com/questions/19689022/how-to-get-memory-usage-history-from-chromedriver-using-selenium
One other way is to build a custom extension, from which js can extract the meta details, in this case the memory consumption.

[Pieras2]

thank You. I will try

[Pieras2]

import { NightwatchBrowser } from 'nightwatch';

module.exports = {
'memory'(browser: NightwatchBrowser) {
browser.execute(function() {
return "window.performance.memory.usedJSHeapSize"
}, [], function (result) {
console.log(">>>>", result);
})
}
};

What I do wrong? I added the argument to chrome options, when in webInspector I call "window.performance.memory.usedJSHeapSize" and it returns the value.

[Pieras2]

This works

import { NightwatchBrowser } from 'nightwatch';

module.exports = {

    async 'memory'(browser: NightwatchBrowser) {
        .... some login code ....
        await browser.execute(function() {
            let x: any = window.performance
            return x.memory.usedJSHeapSize
        }, [], function(result) {
            console.log(result.value / (1024 * 1024));
        })
    }
};

[Pieras2]

but still it's just heap