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Is it possible to check system resources in-browser?

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  Is it possible to check system resources in-browser? Groo Vee <groovee@cyberdude.com> - 2021-03-05 20:11 -0800
    Re: Is it possible to check system resources in-browser? John G Harris <niam@jghnorth.org.uk.invalid> - 2021-03-06 11:12 +0000
    Re: Is it possible to check system resources in-browser? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-03-06 08:06 -0800
      Re: Is it possible to check system resources in-browser? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-03-06 23:53 +0100
    Re: Is it possible to check system resources in-browser? Arno Welzel <usenet@arnowelzel.de> - 2021-03-06 18:37 +0100

#39583 — Is it possible to check system resources in-browser?

How do I check how much CPU is free (indeed, WHAT CPU is there on the system, how many cores), and how much RAM is free, in JS? Is there a way to do this?

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#39586

On Fri, 5 Mar 2021 20:11:31 -0800 (PST), Groo Vee
<groovee@cyberdude.com> wrote:

  <snip>
> how much CPU is free 
  <snip>

If the computer is running a citizen science program that uses up all
the spare time then the answer is 0, all day, every day.

  John

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#39589

On Friday, March 5, 2021 at 10:11:36 PM UTC-6, Groo Vee wrote:
> How do I check how much CPU is free (indeed, WHAT CPU is there on the system, how many cores), and how much RAM is free, in JS? Is there a way to do this?

Due to privacy concerns, no. This information is not available in a regular webpage 

With that being said though, the navigator object may have some of this information though it would probably be inaccurate. on my system for example I have a navigator object with the following properties:

```
Navigator {
  connection {
    effectiveType: "4g",
    rtt: 50,
    downlink: 2.85,
    ...
  },
  deviceMemory: 8,  // inaccurate
  hardwareConcurrency: 5, //inaccurate
  platform: "Win32"
...
}
```

Chromium based browsers such as Edge, Chrome, and Brave have a Task Manager built in. Through a browser extension there is an API that may provide this information. Compatibility across browsers though is questionable:

<https://discourse.mozilla.org/t/how-to-get-current-cpu-and-memory-usage-of-the-system/13202/6>

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#39595

Michael Haufe (TNO) wrote:

> With that being said though, the navigator object may have some of this
> information though it would probably be inaccurate. on my system for
> example I have a navigator object with the following properties:
> 
> ```
> Navigator {
>   connection {
>     effectiveType: "4g",
>     rtt: 50,
>     downlink: 2.85,
>     ...
>   },
>   deviceMemory: 8,  // inaccurate
>   hardwareConcurrency: 5, //inaccurate
>   platform: "Win32"
> ...
> }
> ```

Though partially inaccurate, it is amazing how much information is provided 
by the “navigator” object now.  I think this will be helpful for improving 
the ECMAScript Support Matrix and in other instances, so thank you for 
pointing it out :)
 
-- 
PointedEars
FAQ: <http://PointedEars.de/faq> | <http://PointedEars.de/es-matrix>
<https://github.com/PointedEars> | <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | Please do not cc me./Bitte keine Kopien per E-Mail.

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#39593

Groo Vee:

> How do I check how much CPU is free (indeed, WHAT CPU is there on the
> system, how many cores), and how much RAM is free, in JS? Is there a
> way to do this?

No, there is no way to check this in JavaScript.


-- 
Arno Welzel
https://arnowelzel.de

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