# Please explain this pattern in System CPU load **URL:** \ **Category:** Questions & Help\ **Created:** [June 13, 2023, 1:39pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261 "2023-06-13T13:39:30Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![theBart](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/thebart/32/76734_2.png) [@theBart](https://community.homey.app/u/theBart)\ **Post date:** [June 13, 2023, 1:39pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/1 "2023-06-13T13:39:30Z")
Happy new user here. I have noticed this repeating system CPU load pattern on my HP23 (10.0.0-rc.110): ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/9/4/94c34cd536bf0db28d4a47380b34fd242265009b.png) As seen in the screenshot from Insights, every other hour the load increases to around 50% for 10-15 minutes. Anyone knows what may cause this? Is this load pattern normal on the HP23? I have checked the CPU usage history for all my apps in Insights, but none of them seems to go over 1% at any point. ---
**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:** [June 13, 2023, 7:36pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/2 "2023-06-13T19:36:23Z")
It might be depending on multiple factors, smart home size, apps, devices etc… Anyway, odd is that I have some peaks as well (1min,5min and 15min average), since the beginning… ![obrazek](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/d/a/da9d3d8466814c027f1308074ab81b7e95fad7f0.png) ![obrazek](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/5/c5b65857c9771ef850db9a25ac2a94044cdf1030.png) If you have mostly Advanced flows, you might analyse what flows is doing implementing Simplelog logging… [[APP][Pro] Simple (Sys) LOG - Use this app for Simple (Sys) Logging](https://community.homey.app/t/app-pro-simple-sys-log-use-this-app-for-simple-sys-logging/77533) - the script unfortunately does support only Advanced flows currently. ---
**Author:** ![theBart](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/thebart/32/76734_2.png) [@theBart](https://community.homey.app/u/theBart)\ **Post date:** [June 13, 2023, 8:15pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/3 "2023-06-13T20:15:24Z")
Thank you for your input on this. I will definitely look into Simple Sys Log app. Coming from a couple of years developing flows in Microsoft Power Automate, I only make Advanced Flows on my Homey. So much faster and more efficient to create and maintain compared to the basic flows. 🙂 Actually, I was thinking of disabling all my flows for a couple of hours just to see if that has any effect on the mentioned system load. And after that, perhaps try the same with all the installed apps. 🤔 ---
**Author:** ![Arie\_J\_Godschalk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/arie_j_godschalk/32/63027_2.png) [@Arie\_J\_Godschalk](https://community.homey.app/u/Arie_J_Godschalk)\ **Post date:** [June 13, 2023, 8:38pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/4 "2023-06-13T20:38:21Z")
> [@Sharkys](#): > > the script unfortunately does support only Advanced flows currently. It does support normal flows now also, btw 🙂 ---
**Author:** ![wsu-runner](https://avatars.discourse-cdn.com/v4/letter/w/8e8cbc/32.png) [@wsu-runner](https://community.homey.app/u/wsu-runner)\ **Post date:** [June 17, 2023, 2:19pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/5 "2023-06-17T14:19:53Z")
New Homey Pro owner here as well, and I see similar patterns in the CPU load of mine, even overnight when there is virtually no demand on the Homey. I do have one flow that does a single variable check every 5 minutes and that matches the \<10% load pattern but have found nothing that explains the peaks. Top chart is CPU, bottom chart is all of the apps. Interested in hearing what you learn in your own investigation. ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/1/c1926e59a09fdddfaf2ae33e0de32e8af30cc93f.png) ---
**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:** [June 17, 2023, 3:12pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/6 "2023-06-17T15:12:58Z")
RRDtool consolidation? ---
**Author:** ![theBart](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/thebart/32/76734_2.png) [@theBart](https://community.homey.app/u/theBart)\ **Post date:** [June 17, 2023, 6:18pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/7 "2023-06-17T18:18:55Z")
![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/b/4b527698a76d829b294de19a4e3e7c599783ab65.png) It seems to be a lot of resources just for logging every second hour? But it could certainly be some sort of system job… By the way, is there a way to tag someone from Athom in this thread to get their opinion on this? ---
**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:** [June 18, 2023, 6:02am UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/8 "2023-06-18T06:02:34Z")
> [@theBart](#): > > It seems to be a lot of resources just for logging every second hour? But it could certainly be some sort of system job… It looks like consolidation is done continuously, so it won’t be that. ---
**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:** [June 18, 2023, 9:27am UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/9 "2023-06-18T09:27:09Z")
> [@theBart](#): > > By the way, is there a way to tag someone from Athom in this thread to get their opinion on this? No, not really. But you can open a support ticket ([Link](https://homey.app/en-us/support/)). ---
**Author:** ![theBart](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/thebart/32/76734_2.png) [@theBart](https://community.homey.app/u/theBart)\ **Post date:** [June 22, 2023, 7:21pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/10 "2023-06-22T19:21:35Z")
I have registered a support ticket to Athom regarding this issue. Will post any updates here. ---
**Author:** ![To\_Lou](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/to_lou/32/79159_2.png) [@To\_Lou](https://community.homey.app/u/To_Lou)\ **Post date:** [July 25, 2023, 12:05pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/11 "2023-07-25T12:05:29Z")
Also wondering about these every other hour CPU loads? ![1000030703](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/a/3/a3fc96738feaa95759e81b7c936bc7bc68d19c9b.jpeg) ---
**Author:** ![theBart](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/thebart/32/76734_2.png) [@theBart](https://community.homey.app/u/theBart)\ **Post date:** [July 27, 2023, 6:52am UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/12 "2023-07-27T06:52:11Z")
The only response I have received from Athom support so far is that they have shared my feedback with their development team, so they can have a look at it. I have tried logging in to my HP23 using the SSH Sandbox, but as expected, those processes are not visible in the sandbox environment. Guess we will have to wait and see if this is an issue, and if it will be resolved by Athom. ---
**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:** [July 27, 2023, 6:57am UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/13 "2023-07-27T06:57:33Z")
Just pls. tell them, there is more of us observing more or less the same… ![obrazek](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/e/3eb0827339dd7a63cde71c48c4e21970cd3d3f18.png) ![obrazek](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/9/8/985754727f0231a58dfc1edd4c21f2a56fa2a838.png) ---
**Author:** ![Ranney](https://avatars.discourse-cdn.com/v4/letter/r/848f3c/32.png) [@Ranney](https://community.homey.app/u/Ranney)\ **Post date:** [July 27, 2023, 7:21am UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/14 "2023-07-27T07:21:18Z")
I think we all have. But what it is? ![IMG_3780](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/7/7/779d3d13763a680a80677b9f520ddec32fb3b426.jpeg) Some apps have also ‘strange’ behavior. Maybe it is also related to apps? ![IMG_3779](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/4/c4b0fbbd9b366669afa932b40c46d49690815ee3.jpeg) ![IMG_3778](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/e/a/ea6dc8f645e157ee601128927407f68c8a6ea7b2.jpeg) ---
**Author:** ![Call\_e](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/call_e/32/79513_2.png) [@Call\_e](https://community.homey.app/u/Call_e)\ **Post date:** [July 27, 2023, 7:54am UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/15 "2023-07-27T07:54:17Z")
I did also just create a ticket regarding these spikes, but I’m also seeing some strange behavior with the CPU Clock that occurs once every 24 hours. At this point everything as for instance flows will be very sluggish, but still finalized. ![Skärmbild 2023-07-27 095029](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/b/f/bf796ad95c6445726469d5149d8aa4d81699806d.jpeg) ---
**Author:** ![theBart](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/thebart/32/76734_2.png) [@theBart](https://community.homey.app/u/theBart)\ **Post date:** [July 27, 2023, 8:07am UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/16 "2023-07-27T08:07:23Z")
I have registered a support ticket with Athom and included a link to this thread. Hopefully, someone from the development team will chime in. ---
**Author:** ![To\_Lou](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/to_lou/32/79159_2.png) [@To\_Lou](https://community.homey.app/u/To_Lou)\ **Post date:** [July 30, 2023, 11:29am UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/17 "2023-07-30T11:29:36Z")
I came home at about 13:00. Some flows were not triggered properly, and I guss the Homey was ‘busy’ with other stuff. ![1000031247](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/7/a/7a249db2810b4f8d131d3d296e2f45b129efcc94.jpeg) ---
**Author:** ![Vincent\_Vans](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/vincent_vans/32/16788_2.png) [@Vincent\_Vans](https://community.homey.app/u/Vincent_Vans)\ **Post date:** [August 1, 2023, 10:50am UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/18 "2023-08-01T10:50:24Z")
Started investigating since my HP2023 loses communication all the time, zigbee devices are not responding (or very slow), and Zwave generates errors. I see a huge similarity, every 2 hours (not exact). Reported to Athom. Also I have no flows that act every two hours. ![Homey spikes](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/b/1/b1495dcd201505fc5d735f34afcdb29c19cc785e.jpeg) ---
**Author:** ![To\_Lou](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/to_lou/32/79159_2.png) [@To\_Lou](https://community.homey.app/u/To_Lou)\ **Post date:** [September 6, 2023, 5:29pm UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/19 "2023-09-06T17:29:45Z")
Anyone with Beta firmware to verify what changed? > v10.0.4-rc.10 > **Core** - Fixed an issue that caused increased CPU load. ---
**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:** [September 7, 2023, 5:39am UTC](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261/20 "2023-09-07T05:39:40Z")
> [@To\_Lou](#): > > to verify what changed Don’t observe any difference… ![obrazek](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/e/b/eb6dcd3cc6b42cf4325b72dd7672deeb21a970d7.png) I wonder if anyone has submitted anything yet to Athom ? [Next page](https://community.homey.app/t/please-explain-this-pattern-in-system-cpu-load/82261.md?page=2)