# \[APP\]\[Pro\] sysInternals - Shows Homey’s System Internals

**URL:** <https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650>\
**Category:** Apps\
**Tags:** app, homey-pro, homey-pro-2023\
**Created:** [March 30, 2023, 5:37pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650 "2023-03-30T17:37:57Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [March 30, 2023, 5:37pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/1 "2023-03-30T17:37:57Z")

</div>

### sysInternals - Shows Homey’s System Internals

> **[sysInternals | Homey](https://homey.app/en-us/app/com.sysInternals/sysInternals/)**
>
> Shows Homey’s System Internals

Take control of your Homey hardware health with **sysInternals** , designed to provide deep insights into core metrics, system load, and device vitals. Originally built to track CPU throttling and under-voltage on the Homey Pro 2023, the app now supports a wide range of Homey hardware and self-hosted environments.

**Hardware Architecture & Key Metrics**

The app detects your specific CPU architecture, memory configuration, and device layout, while monitoring essential metrics:

- **Processor Vitals:** Real-time CPU usage, load averages (1, 5, 15 min), and internal temperatures.
- **Memory & Storage:** Monitors free memory and warns if it enters critical thresholds.
- **System Status:** Tracks uptime, network connectivity (Wi-Fi/Ethernet), and hardware details.

For Homey Pro based on Raspberry CM4 an alarm shows if Homey’s CPU Alarm triggered and warns the user on the timeline with a link to a [Community topic](https://community.homey.app/t/78650/3) for information and advice.

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/b/3b87bb33840a87261c0c9935c9213ef06995b39d.jpeg)

Current Devices:

- Homey Pro (2016-2019) (including original Non-Pro models)
- Homey Pro (2023/2026)
- Homey Pro mini
- Homey Self-Hosted Server
- LG ThinQ ON
- CPU Alarms (CM4)
- Weather
- Wifi
- Ethernet Network

Translated: 🇳🇱 🇬🇧 Dijker, 🇩🇪 🇫🇷 🇮🇹 🇸🇪 🇳🇴 🇪🇸 🇩🇰 🇷🇺 🇵🇱 🇰🇷 OpenAI

**🔔 Proactive Alarms & Flow Triggers**

- **Under-Voltage Detection:** Intercepts native CPU and under-voltage warnings, sending timeline alerts to help address power supply or thermal issues.
- **Smart Flow Cards:** Trigger automations when Homey restarts, when all enabled apps finish initializing post-boot, or when specific metric thresholds change.

* * *

This is the Result:

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/e/3/e31edbe4079baa868c9b52e9c27610bb850ef359.jpeg) ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/0/2/0254a1a6f3bd037b9d0f57a315b5afc253605eef.jpeg) ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/1/4/1480aaf597820ec34f80c2ad5cc81d0125e69f81.jpeg)

As you can See I managed to get them all 😉

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/1/c1537d64dffed40a579e8671a19d0afd0c318eb1.png)

**🥽 Links & Contributions**

- **App Store:** [Production Version](https://homey.app/en-us/app/com.sysInternals/sysInternals/) | [Test Version](https://homey.app/en-us/app/com.sysInternals/sysInternals/test/)  
The app is not available on Homey Cloud.

* * *

## Contributions

If you appreciate this app, contribute to future development by making a [paypal contribution](https://www.paypal.me/Dijker)  
or buy me a couple of 🍻 or a ☕ on [Ko-Fi](https://ko-fi.com/Dijker#checkoutModal)or [Bunq.me](https://bunq.me/Dijker)

[![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/2/9/2916364caa1239076c12be293d270d5980d9d272.png) ](https://paypal.me/Dijker)[![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg) ](https://ko-fi.com/Dijker#checkoutModal)[![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/8/4/8449771d527e7184562e1301d641dfc1e99a4261.png)](https://bunq.me/Dijker)

---

<div class="post-metadata">

**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [March 30, 2023, 5:38pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/2 "2023-03-30T17:38:07Z")

</div>

Reserved

---

<div class="post-metadata">

**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [March 30, 2023, 5:38pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/3 "2023-03-30T17:38:12Z")

</div>

You are redirected here from a Alert on your Timeline:  
fe:

- When you see the Homey Pro is LOW on free Memory \< 20% [Low on Free Memory](https://community.homey.app/t/topic/78650/3#low-on-free-memory-2)
- A CPU Alarm Occured! Please Check sysInternal Alarms device. For more info read: [CPUWarning](https://community.homey.app/t/topic/78650/3#cpu-warning-1)

# CPU Warning

If your Homey Pro (Early 2023) fe detected a `videoCoreUndervoltage` it slows down the CPU due to a to Low voltage. In this situation the Raspberry Pi Compute Module 4 (CM4) briefly starts throttling the CPU speed.

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/6/0/60c77f4a2bb99b860479bc02899c6a964df6a14f.png) and ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/7/c729d5c8c024a582ec191c00a50e6d4f42ad3c5e.png)

Maybe you where one of the Early adapter’s (or have one 😉 ) in that case you probably received an email from Athom.

- _The first shipment has received a power adapter which unfortunately makes Homey Pro’s CPU underclock. [Read the e-mail here »](https://mailchi.mp/217770f9b300/homey-pros-power-adapter)_

Or maybe you just replaced it with your own adapter and didn’t know that your new Homey was so picky about good

Please read here: [[Info] USB Power Supplies and cables (for Homey Pro Early 2023)](https://community.homey.app/t/78431)  
or here: [Power supply can cause slow Homey Pro 2023](https://community.homey.app/t/78279)  
or [Search the community](https://community.homey.app/search?expanded=true&q=Pro%202023%20power%20volt)

TL;DR:

- Get Homey at least 5.0 Volt;
- Use the (New \* to be send) Original Athom Adapter;
- Use the Original Athom Cable;
- Check cables for damage;
- Test without Ethernet Adapter;
- and maybe Test with another Adapter better/shorter cables; (See Topic above)

If steps above didn’t work:

- Contact Athom Support (after April 2023 as Athom promised to provide a replacement Adapter)

# Low on Free Memory

> When you see the Homey Pro is LOW on free Memory \< 20%  
> For more info read: …

Homey need to have at least ~ 10% free memory to function smoothly.  
When you ask to much from Homey by installing to manny, to big Homey Apps (the Numbers may vary) homey can’t start new Apps. sysInternals gives a warning when Homey’s Free memory drops below 20% Just know that Homey can’t have much more before fe Extra Apps will refuse to start.

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/0/a/0aa7a2d2a600a2a2ea7d54475c171f5db41f25a5.png)

---

<div class="post-metadata">

**Author:** ![Glenn\_Seegers](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/glenn_seegers/32/8353_2.png) [@Glenn\_Seegers](https://community.homey.app/u/Glenn_Seegers)\
**Post date:** [March 30, 2023, 5:43pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/4 "2023-03-30T17:43:30Z")

</div>

thats a nice addition for my homey, thank you @Dijker 🤩

---

<div class="post-metadata">

**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\
**Post date:** [March 31, 2023, 5:26am UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/5 "2023-03-31T05:26:01Z")

</div>

@Dijker excellent idea, and mostly for both Homeys Pro, thank you !

Just maybe one additional possible addition - would you mind to add uptime ? I saw some people are saying “maybe my HP rebooted itself”, I’m facing instability issues myself but using HomeyScript to calculate uptime so maybe it will be another useful additional to it ?

---

<div class="post-metadata">

**Author:** ![Ranney](https://avatars.discourse-cdn.com/v4/letter/r/848f3c/32.png) [@Ranney](https://community.homey.app/u/Ranney)\
**Post date:** [March 31, 2023, 7:28am UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/6 "2023-03-31T07:28:18Z")

</div>

Very interesting app! Thank you for making this app!

One question. I’m looking into my memory (RAM) usage. What i see is that homey itself is reporting way more free RAM in \<System → General → Memory\> than this app is reporting. Any idea what RAM value is correct?

More info: Homey system is reporting more than 500mb free RAM. The app is reporting less than 125mb free RAM. Many thanks for help!

---

<div class="post-metadata">

**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [March 31, 2023, 7:42am UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/7 "2023-03-31T07:42:46Z")

</div>

> [@Ranney](#):
>
> More info: Homey system is reporting more than 500mb free RAM. The app is reporting less than 125mb free RAM.

Hmmmm… interesting  
can you restart the app, send. A report and provide me the info in a PM with two screenshots what you see?

---

<div class="post-metadata">

**Author:** ![Joka](https://avatars.discourse-cdn.com/v4/letter/j/7feea3/32.png) [@Joka](https://community.homey.app/u/Joka)\
**Post date:** [March 31, 2023, 8:32am UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/8 "2023-03-31T08:32:54Z")

</div>

Hi @Dijker,

I remembered a statement from @robertklep about the free memory calculation:

> [@Free memory on Homey](https://community.homey.app/t/free-memory-on-homey/21072/7):
>
> Yeah, I was just going to post the same. It looks like Athom uses the “free” column from the free command line utility, which doesn’t take into account the amount of memory that’s currently being used for vfs cache (and which can be released on short notice if more RAM is required for user processes).

Maybe this older thread helps a little bit.

---

<div class="post-metadata">

**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [March 31, 2023, 8:41am UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/9 "2023-03-31T08:41:33Z")

</div>

It looks like this was changed, the values on the [system page](https://tools.developer.homey.app/tools/system) (which I assume are the same ones that @Dijker’s app is using) now reflect the actual _available_ memory on the system:

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/2/4/245837b914d9874f96b86dddc03c04236d1dda59.png)

and:

```auto
# free -b
               total used free shared buff/cache available
Mem: 1939070976 663658496 661807104 21397504 613605376 1257275392

```

---

<div class="post-metadata">

**Author:** ![Joka](https://avatars.discourse-cdn.com/v4/letter/j/7feea3/32.png) [@Joka](https://community.homey.app/u/Joka)\
**Post date:** [March 31, 2023, 8:46am UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/10 "2023-03-31T08:46:08Z")

</div>

Do you know if the change applies to the old and the new Homey or does the memory calculation have to be considered differently for the older and newer model?

---

<div class="post-metadata">

**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [March 31, 2023, 8:56am UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/11 "2023-03-31T08:56:26Z")

</div>

This is only for the new Homey, I didn’t check the old one.

---

<div class="post-metadata">

**Author:** ![Robin\_De\_Lange](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robin_de_lange/32/25173_2.png) [@Robin\_De\_Lange](https://community.homey.app/u/Robin_De_Lange)\
**Post date:** [March 31, 2023, 10:44am UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/12 "2023-03-31T10:44:05Z")

</div>

does anyone know why homey itself uses so much gb ram itself? after a restart it drops like more than 200 mb’s. before I had only 13% of free memory and after restart 30 % (which its allot either I you asking me) with the 2019 I had no problems with memory use or something but it likes every app and homey itself has growing 2 times in gb ram

---

<div class="post-metadata">

**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\
**Post date:** [April 1, 2023, 10:50am UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/13 "2023-04-01T10:50:16Z")

</div>

Hi @Dijker, just an info. The link in the App Store “Community - Visit forum” leads to the wrong site in the Community.

---

<div class="post-metadata">

**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [April 1, 2023, 11:13am UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/14 "2023-04-01T11:13:55Z")

</div>

> [@DirkG](#):
>
> The link in the App Store “Community - Visit forum”

not in the next version, already in Test: [sysInternals | Homey](https://homey.app/en-us/app/com.sysInternals/sysInternals/test/)

---

<div class="post-metadata">

**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [April 1, 2023, 2:07pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/15 "2023-04-01T14:07:51Z")

</div>

> [@Sharkys](#):
>
> Just maybe one additional possible addition - would you mind to add uptime ?

like this now in test? [sysInternals | Homey](https://homey.app/nl-nl/app/com.sysInternals/sysInternals/test/)

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/a/9/a9a62f4f32966ecaee34359eeda8a6ad991728ed.png)

---

<div class="post-metadata">

**Author:** ![Joka](https://avatars.discourse-cdn.com/v4/letter/j/7feea3/32.png) [@Joka](https://community.homey.app/u/Joka)\
**Post date:** [April 1, 2023, 3:20pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/16 "2023-04-01T15:20:14Z")

</div>

Hi @Dijker,

on my homey Pro early 2019 the loadavg is shown per core, doesn’t it make more sense to show the loadavg for both cores together like in [https://tools.developer.homey.app](https://tools.developer.homey.app) ?

THX

---

<div class="post-metadata">

**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\
**Post date:** [April 1, 2023, 3:21pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/17 "2023-04-01T15:21:24Z")

</div>

Exactly, can’t be better ! 😉 Thank you so much, will test as soon my HP2023 will be operational again … ;-(

---

<div class="post-metadata">

**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [April 1, 2023, 3:30pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/18 "2023-04-01T15:30:57Z")

</div>

> [@Joka](#):
>
> homey Pro early 2019 the loadavg is shown per core

No it shows like in [https://tools.developer.homey.app](https://tools.developer.homey.app/) :

- 1 minute average
- 5 minute avarage
- 15 minute average  
In text : [0.1, 0.09, 0.07] all x 100%  
so:  
 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/b/cbf7cdf5013774cb5a8b25b390cfdba62fda90dd.png)

---

<div class="post-metadata">

**Author:** ![Joka](https://avatars.discourse-cdn.com/v4/letter/j/7feea3/32.png) [@Joka](https://community.homey.app/u/Joka)\
**Post date:** [April 1, 2023, 3:42pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/19 "2023-04-01T15:42:44Z")

</div>

I’m sorry but not on the older one (Homey Pro early 2019):

![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/6/b/6bc388aa1aea13eeef4e14635f0369fc7100404e.png)

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/1/9/196129ead4879b971b6056c72857fe7f625e2bc8.png)

v0.1.2

---

<div class="post-metadata">

**Author:** ![Caseda](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/caseda/32/138695_2.png) [@Caseda](https://community.homey.app/u/Caseda)\
**Post date:** [April 1, 2023, 4:01pm UTC](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/20 "2023-04-01T16:01:01Z")

</div>

Curious how every core is shown separately if you have 2 cores, but 3 values 😜 But those 3 values is exactly what the app is showing, the last 1 minute, 5 minute and 15 minutes averages, and not every core.

[Next page](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650.md?page=2)