Boottime Reduction

[geyer.ch...@gmail.com]

Hello Everybody,

I need to reduce the Booting time of my Beaglebone Black (4.14.71-ti-r80) but I also need a lot of drivers like SPI, I2C, and Remoteproc for the PRUs.

By now it boots within ca. 1:30 which is way to much. Is there a simple way or a good guide to lower this time?

Regards Chris

[Robert Nelson]

First, upgrade from that image..

https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#Debian_Stretch_IOT_Snapshot

There was a lot of tweaks over the last year to get the boot time
down.. (first boot always sucks, as ssh key's are regenerated..)

Regards,

--
Robert Nelson
https://rcn-ee.com/

[TJF]

Hi Chris!

Everybody needs to reduce boot time :-) But it's increasing with every new kernel version.

I just set up a system on BBB with wifi dongle:

$ uname -r
4.14.146-bone29
$ systemd-analyze time
Startup finished in 1.179s (kernel) + 18.086s (userspace) = 19.265s

But uio_pruss instead of rprog, no config-pin. The -ti kernel is ~ 10 s slower.

Regards

[Robert Nelson]

Rember, the -ti kernel has smp/am57xx support.. So it's unfair, as the
-bone kernel gets to be much simpler.. ( lack of smp.. ;) )

[TJF]

Who needs am57xx support for the BBB?

[Robert Nelson]

On Wed, Dec 18, 2019 at 8:47 AM TJF <jeli.f...@gmail.com> wrote:
>
> Who needs am57xx support for the BBB?

BeagleBone AI users. ;)