Re: [boot-time] jent_mod_init on beagleplay (was RE: [boot-time] [RFC] analyze-initcall-debug.py - a tool to analyze the initcall debug output

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Am Montag, 30. Dezember 2024, 23:35:03 Mitteleuropäische Normalzeit schrieb 
Francesco Valla:

Hi Francesco,

> Hi Shankari,
> 
> On Sunday, 29 December 2024 at 19:52:29 Shankari <beingcap11@xxxxxxxxx> 
wrote:
> > Hi
> > 
> > I wanted to provide an update on my recent contributions to the BeaglePlay
> > project. I have recently started contributing and have been analyzing the
> > boot time of the init process. Below is the output from the system log:
> > 
> > debian@BeaglePlay:~$ dmesg | grep "init process"
> > [    1.480490] Run /init as init process
> > 
> > Moving forward, I plan to explore ways to modify the command line and
> > further investigate the data used for SIG analysis. This will help me gain
> > a deeper understanding of the boot process and its performance
> > characteristics.
> 
> I started the same journey around a week ago, and it's proving a valuable
> experience.
> 
> After some trimming, I reached a (reported) init startup time of around
> 0.6s:
> 
> root@beagleplay-ti:~# dmesg|grep /sbin
> [    0.630046] Run /sbin/init as init process
> 
> The result above was obtained on a slightly modified 6.12.4 kernel with a
> custom configuration (I am still thinking about the modifications, as they
> are a bit unorthodox, but I can share them as well as the defconfig if you
> are interested).
> 
> > Please let me know if you have any suggestions or areas where I could
> > focus
> > my efforts.
> 
> In general, I'd suggest to use a recent kernel, as I observed a consistent
> reduction of boot time between e.g. 6.6.x and 6.12.x.

I am now partially in this discussion - what exactly are you trying to 
achieve, or rather is there anything wrong with the current system? I am 
trying to see whether there is something on my side to work on.
> 
> > Best regards,
> > 
> > Shankari
> 
> Regards,
> 
> Francesco


Ciao
Stephan







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