CPU/GPU Load average - Linux 4.1

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CPU/GPU Load average - Linux 4.1

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iMXToni
Contributor I

Hi all,

i working with an i.MX6s CPU (single core). The system is running with Linux 4.1 and QtQuick 2.3 Application.

System Application idle (no animations, only background processes):

If we check the system performance with TOP / HTOP we can see an CPU Load average of ~  0.4 / 0.4 / 0.35

CPU:  3.6% usr  8.3% sys  0.0% nic 85.1% idle  0.0% io  0.0% irq  2.7% sirq

Then we start some QML Animations and the cpu load average rises up to ~ 1.4 

CPU: 26.5% usr 14.9% sys  0.0% nic 50.5% idle  0.0% io  0.0% irq  7.9% sirq

Now my question: Is this an combination from the GPU and CPU load? The system is running smoothly and I cannot see any lags or blocking operations.

Should I be worried or is it only an Linux interpratation from the overall GPU CPU load?

Usually the single core must be lower then 1.0 ->

dual core lower then 2.0 -> and so on.

Is it possible to readout the GPU load only?

Has anyone a good explanation?

Thanks.

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Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hi Ferdinand

If you are looking to know the GPU tasks and performance of an application pipeline, then there is no another way than recompiling the kernel and build the GCCORE drivers. If you are looking to profile OpenGL APis, you can be able to run others tool such as apitrace on your enviroment. Please check: 

https://community.nxp.com/message/450891 

Regards

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