Performance of Raspbian Bullseye on Pi 3B

j.e.f.f

I recently rebuilt my mirror and installed Raspbian Bullseye as the base OS. I’m finding the performance to be REALLY slow… when my PIR sensor picks up motion, it takes a good 5-10 seconds or so for the mirror to respond, and when it does the transition from my screensaver module to normal layout is nowhere near smooth. Like 2-3 FPS.

Am I expecting too much from a Pi 3B with running Bullseye? If so, what OS should I redo the build on that performs well, but is not so outdated to the point I’ll run into unsupported code problems?

I don’t really want to purchase a Pi4 for this, as the Pi3B was at one point in time fine for this project and I’m not demanding anything more from it than I originally did.

j.e.f.f

@sdetweil Yep! A rebuild on Buster made all the difference. Performance is back up to what I remember it being under Jesse.

Thanks for the tip!

j.e.f.f

Also does installing Raspbian lite make a difference performance-wise or does it just save space?

sdetweil

@j-e-f-f mm doesn’t run on lite.

sdetweil

@j-e-f-f go back to legacy/buster… they are still tuning bullseye.

increase the swap space will help, but will wear thru the SD card faster. I boot from read only sd card, run from 1tb SSD stick. lot faster disk

buster will run out of support sometime.

j.e.f.f

@sdetweil Yep! A rebuild on Buster made all the difference. Performance is back up to what I remember it being under Jesse.

Thanks for the tip!