About imx6 GPU performance difference between LTIB and Yocto

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About imx6 GPU performance difference between LTIB and Yocto

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宗標廖
Contributor V

Hello,Community

I tested the GPU performance of iMX6 with the following apps in /opt/viv_samples/vdk.

viv_p1.png

And the result is as bellow.

My question is:

According to the results,the GPU performace in LTIB is better than that in Yocto.Why is it?

viv_p2.png

viv_p3.png

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igorpadykov
NXP Employee
NXP Employee

Hi 宗標 廖

regarding yocto please use latest L3.14.28_1.0.0_iMX6QDLS_BUNDLE

it has Vivante 5.0.11.p4.5 libraries while L3.10.17_1.0.2 used 4.6.9p13

IMX6L31428101RN i.MX 6 Yocto Project L3.14.28_1.0.1 Patch Release Notes -Release Notes

Best regards

igor

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宗標廖
Contributor V

igorpadykov

I need your help.

Thank you!

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igorpadykov
NXP Employee
NXP Employee

you can check discussion on meta-fsl-arm mailing list

https://www.mail-archive.com/meta-freescale@yoctoproject.org/msg12902.html

~igor

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宗標廖
Contributor V

Hi ,igor

I compared source code in <linux>/drivers/mxc/gpu-viv between L3.10.17_1.0.2 and L3.0.35_4.1.0,

they are very different.

I want to know whether is it the reason or not?

Thank you!

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igorpadykov
NXP Employee
NXP Employee
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宗標廖
Contributor V

Hi igor

any other advice??

I am now confused by this issue.

Thank you!

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宗標廖
Contributor V

Hi igor

I tried the 3.14.28_1.0.0,the results are almost the same as 3.10.17_1.0.2.

I want to know how to get a better performance when using Yocto BSP.

Best Regards,

ZongbiaoLiao

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