Getting Started with the Raspberry Pi by Kevin Johnson

Author:Kevin Johnson [Johnson, Kevin]
Language: eng
Format: epub
Published: 2013-05-22T18:30:00+00:00

Adjusting available memory

While the latest model of the Raspberry Pi has increased the amount of RAM to 512MB from the 256MB in the original, it is still a far cry from what desktops, laptops, even most midrange smartphones pack in. And not just that, the available memory is split and shared between the CPU and GPU. By default, the central processor gets the higher amount of memory to itself, while the graphics processing unit makes do with a smaller slice.

This is reasonable enough for most cases. But in some usage scenarios a different set up might make sense. For example, if you use your Pi as a server, you will surely want to assign as much memory as possible to the CPU, as there will not be too much of a need for graphics power. In this case some slight adjustments to the memory layout are in order. But before we get to that, type the following command in the terminal to get an idea of the memory situation on your Pi:

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