Dear Frank,
In message 5328485C020000460004BFD4@gwia2.rz.hs-offenburg.de you wrote:
Q1: why are you using so old software?
Because of some patches it's a big job to switch to a newer one.
Well, you cut yourself off from all nice features present in more recent versions...
Q2: Do you actually have a plan for your optimizations, or are you
>just poking around at random?It's not poking around, the aim is to see what effects do some options really ("atomically") have. I'm doing many measurements and always compared with a Buildroot defconfig that takes time around 10.6 s time from Bootloader to Userland.
I'm sorry, but I do call this poking around. When doing optimizations, you should always start with measuring the current state first. Only when you klnow exactly hoiw long each step of the boot process takes you can determine where it makes sense to spend efforts on the optimization. Saving 50% of the time sounds great, but it means nothing if it's for a step that contributes only 1% to the total boot time.
Best regards,
Wolfgang Denk