High CPU usage on Log entry

[frankis78]

I have very high CPU usage on the Log. In the log it self there is nothing special, and at this moment noone is in house or any sensors are trigged.
But still it uses High CPU.
Im Running 4.1.14.0

[rge]

It looks like you're running it many many times, I only have one occurrence of each executable running.

[frankis78]

Strange, i have checked everything and all seems fine. Also restart doesent help. Still have high CPU usage. Even with disabling all plugins it is high CPU usage.

[concordseer]

Strange, i have checked everything and all seems fine. Also restart doesent help. Still have high CPU usage. Even with disabling all plugins it is high CPU usage.

What version of Mono is in use.

[Guest]

As a first step tried to press ctrl+H on htop

[Guest]

The cpu load and cputime intense for 12 ‘minutes of running.

Knowing what mono V is a good advice from Concorseer.
Also , on what machine are you running this?

[rge]

Thanks MattL0 - it's actually just H to stop showing threads in htop, but that explains the multiple entries.

OP - this isn't a Log process, it's just the main HS process.

[frankis78]

Im using mono version 6.12.0.122
It is running on a raspberry pi 3B+ with Raspbian stretch 9.13

[rge]

You're fully up-to-date on Mono, and the CPU usage looks a little better.

That does look like a lot of threads though - do you have events running that don't finish? It seems to be creating threads on a fairly regular basis that are hanging around, which sounds like the sort of thing a hanging event script could cause.

But that's just a guess, unless someone who's seen this before or knows the internal HS architecture can say more.

Next step for me would be a process of elimination - turn stuff (plugins, events, etc) off one by one and see if anything helps, or turn everything off and turn things back on and see what hurts.

[concordseer]

Im using mono version 6.12.0.122
It is running on a raspberry pi 3B+ with Raspbian stretch 9.13

What version of HS4 are you running, Standard/Pro/HomeTroller etc. What plugins are installed. You might want to look at upgrading to Raspbian Buster at this stage as Raspbian Stretch is no longer receiving updates other than security patches. There may well be firmware issues relating to your Raspberry Pi 3b+ which were addressed in Raspbian Buster.

At this stage anyone running Raspbian Buster should be preparing for a Raspbian Bullseye upgrade which should be in release shortly.

[frankis78]

Thanks for good suggestions.
Im using the latest version of HS4 4.1.14.0
I have tried to restart and so on, and also tried to turn off all plugins, but still it uses a bit of CPU with no plugins running.
Maybe I should wait for Raspbian Bullseye to come out, and upgrade it to that instead



Date/time=15/03/2021 17:32:44 CET
Version=HS4 Standard Edition 4.1.14.0 (Linux)
MONO Version=Mono JIT compiler version 6.12.0.122 (tarball Mon Feb 22 17:52:29 UTC 2021)

License=Registered
Confguration File=/home/pi/HomeSeer/Data/HomeSeerData.json
Uptime=3 Days 0 Hours 6 Minutes 50 Seconds
Device Count=692
Event Count=86
Plugins Enabled=Z-Wave:,mcsMQTT:,Nest:,Philips Hue:,AK Ikea:,SensiboClimate:
Modules/Threads=81 Modules, 130 Threads
Available Threads=399
HomeSeer Memory Used=179 Mbytes
Plugins Installed=AK Ikea 4.0.0.9,mcsMQTT 5.15.1.0,Nest 3.0.0.34,Philips Hue 4.0.22.0,SensiboClimate 2.0.0.5,Z-Wave 3.0.2.0

[concordseer]

Thanks for good suggestions.
Im using the latest version of HS4 4.1.14.0
I have tried to restart and so on, and also tried to turn off all plugins, but still it uses a bit of CPU with no plugins running.
Maybe I should wait for Raspbian Bullseye to come out, and upgrade it to that instead



Date/time=15/03/2021 17:32:44 CET
Version=HS4 Standard Edition 4.1.14.0 (Linux)
MONO Version=Mono JIT compiler version 6.12.0.122 (tarball Mon Feb 22 17:52:29 UTC 2021)

License=Registered
Confguration File=/home/pi/HomeSeer/Data/HomeSeerData.json
Uptime=3 Days 0 Hours 6 Minutes 50 Seconds
Device Count=692
Event Count=86
Plugins Enabled=Z-Wave:,mcsMQTT:,Nest:,Philips Hue:,AK Ikea:,SensiboClimate:
Modules/Threads=81 Modules, 130 Threads
Available Threads=399
HomeSeer Memory Used=179 Mbytes
Plugins Installed=AK Ikea 4.0.0.9,mcsMQTT 5.15.1.0,Nest 3.0.0.34,Philips Hue 4.0.22.0,SensiboClimate 2.0.0.5,Z-Wave 3.0.2.0

At this stage looking at the individual plugins might be the route to go before upgrading to Raspbian Buster.

Disable all plugins and enable one at a time to see if you can recreate the issue. You may also look at the individual plugin sections to see if any similar behaviour has been reported.

If you can’t isolate the issue after these checks, a full backup, install Raspbian Buster, HS4 with all it’s dependencies and a restore might be your best option.

[wallee]

I thing the loadaverage is more important. I see its around 2 which is ok for a 4 core system.

Regards, Walter

[frankis78]

I thing the loadaverage is more important. I see its around 2 which is ok for a 4 core system.

Regards, Walter

I can agree on that. Im not that good on linux, but i can see that when i have those high peaks on the instant load, that the browser also is slower to reload the page and it is very slow to work with HS4.
I will try to upgrade to Buster and see if that can help on it

[John245]

I thing the loadaverage is more important. I see its around 2 which is ok for a 4 core system.

Regards, Walter

You should look at all 3 load averages (1, 5 and 15 minutes).

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John