AM4378: Fastboot

ROSHAN RAJAGOPAL

Part Number: AM4378
Other Parts Discussed in Thread: AM62P

I am currently working with the TI SDK on a Linux-based system, which takes approximately 20 seconds to boot before launching my Qt application.

I am interested in reducing the boot time so that my application, along with essential services, can start within 5 seconds. I have come across some resources suggesting that this is possible, but I do not have a clear understanding of the steps required to achieve this on AM4378 boards using the TI SDK.

I would greatly appreciate your guidance on how to optimize the boot process and directly launch my application within the desired timeframe.
The links i saw are given below
https://embetrix.com/2017/05/16/embedded-linux-fast-boot-techniques/
https://www.e-consystems.com/articles/Product-Design/Linux-Boot-Time-Optimization-Techniques.asp

Thank you for your support.

Best regards,
Roshan Rajagopal

23 days ago

0 ROSHAN RAJAGOPAL 21 days ago

Intellectual 335 points

Hi ,

Is there any update regarding the above

0 Suren Porwar 21 days ago in reply to ROSHAN RAJAGOPAL

TI__Mastermind 32210 points

Hi Roshan,

Have you tried to build tisdk-tiny-image or tisdk-base-image and create a system with required feature set?

https://software-dl.ti.com/processor-sdk-linux/esd/AM437X/11_02_05_02/exports/docs/linux/Overview_Building_the_SDK.html#id3

Best Regards,

Suren

0 ROSHAN RAJAGOPAL 20 days ago in reply to Suren Porwar

Intellectual 335 points

Hi ,

No i have not tried , but i need some support in doing so as i have some questions before i proceed with the same.
1) i have created a QT application, right now it launches on the weston desktop with the rendering done by wayland i guess , this is the image provided by TI in the SDK but problem is it takes 20 seconds to boot and then another 2 seconds to launch the application. I would like to know if it is possible to boot within 5 seconds and launch the QT application on wayland itself or should we use any other renderer.The main goal of doing this is so that it resembles something similar to a car multimedia system where the system is switched on as soon as the car is switched on.

2) Is it necessary to Bitbake an image or can we achieve this with the present image provided by TI in their SDK.If bitbake has to be done could you guide me on what to do for the above scenario to work.

Regards,
Roshan Rajagopal

0 ROSHAN RAJAGOPAL 19 days ago in reply to ROSHAN RAJAGOPAL

Intellectual 335 points

Hi ,

Is there any updates regarding this ?

Regards,

Roshan Rajagopal

0 Suren Porwar 18 days ago in reply to ROSHAN RAJAGOPAL

TI__Mastermind 32210 points

Hi Roshan,

Theoretically speakinig, yes you should be able to reduce the boot time. The default image that is packaged is usually with all the features enabled/configured. That's the reason, I suggested you to begin with a core minimal image or a tiny/base image and add what features based on your requirments.

Removing from the default image would be a tedious job. So, I would stick with a minimal config image first and then keep adding features on top.

Best Regards,

Suren

0 ROSHAN RAJAGOPAL 14 days ago

Intellectual 335 points

Hi,

I will try to bitbake the image , but i have one doubt , if i want the QT application to pop up immediately should i compile it with weston or anything else is better off to try?
Could you help me and guide me through it ?

Regards,
Roshan Rajagopal

0 Suren Porwar 11 days ago in reply to ROSHAN RAJAGOPAL

TI__Mastermind 32210 points

Hi Roshan,

Its not required to have weston, you can use DRM.

Let me know how the image build goes.

Hope this helps

Best Regards,

Suren

0 ROSHAN RAJAGOPAL 6 days ago in reply to Suren Porwar

Intellectual 335 points

Hi ,

I bitbaked a tiny tisdk image but that also still takes 13 seconds to boot , is it because i used the zimage i previously used?
also i even bitbaked core-image minimal. Could you provide some guidelines on how to reduce the boot time?
Is it because of systemd? is there any other way other than systemd which might boot the system faster?

Regards,

Roshan Rajagopal

0 Suren Porwar 5 days ago in reply to ROSHAN RAJAGOPAL

TI__Mastermind 32210 points

Hi Roshan,

Instead of systemd you can use sysvinit as the INIT_Manager.

Also for core-minimal-image, what oe-config file did you use?

Best Regards,

Suren

0 ROSHAN RAJAGOPAL 5 days ago in reply to Suren Porwar

Intellectual 335 points

Hi,

To use sysvinit do we change anything the conf file or something or is it someother way?
for core minimal image i didnt change the oe-config file. i used the ti processor sdk config file only

Regards,
Roshan Rajagopal

0 Suren Porwar 4 days ago in reply to ROSHAN RAJAGOPAL

TI__Mastermind 32210 points

Hi Roshan,

I have sent you an email on how to boot quickly on AM62P. Please follow the instructions and let me know how it goes.

Best Regards,

Suren

0 ROSHAN RAJAGOPAL 3 days ago in reply to Suren Porwar

Intellectual 335 points

Hi ,

Thank you , will try it out and get back to you

Regards,

Roshan Rajagopal

Processors

Processors forum

AM4378: Fastboot