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Does Raspbian lite version use less cpu / memory than the full Raspbian. I know the lite uses less storage for sure but not sure on the cpu memory.

I am running some time critical code I am thinking might improve if I switch to Lite because the cpu is doing less of other stuff?

I am trying to capture 2 images simultanously. I have 2 pi zeros attached via usb otg to a pi3 and a simple python udp program that sends a message from pi3 to both pi zeros to capture. However I'm getting images up to 100ms apart.

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    lite has no GUI so, yes, less resources in general are used when using lite
    – Jaromanda X
    Jul 17, 2019 at 5:02
  • Why don't you try it and see? If you don't start the GUI, I doubt it will make any significant difference.
    – Milliways
    Jul 17, 2019 at 5:33
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    You have almost certainly hit on the wrong solution to your problem. If you actually explain the problem you have we may be able to help.
    – joan
    Jul 17, 2019 at 7:40

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Raspbian Lite doesn't have any GUI. It has only a command-line interface. If you want to work on Raspberry with Lite version then you should have a basic understanding of commands and file system of Linux. And Raspbian Lite uses less CPU and memory uses because of no GUI.

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Having more software installed doesn't have any impact on the CPU/RAM unless you run that software. Run raspi-config and disable desktop environment, and after a reboot you will get a system which will be pretty close to Raspbian Lite performance-wise. If that provides the performance boost you expect, you could permanently switch to Raspbian Line. I wouldn't hold my breath though.

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