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Altera_Forum
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21 years ago

µCLinux - How to minimize buffers

Hello, im trying to minimize the buffers used by Linux to gain more free memory. My custom board is equipped with a 2MB SDRAM chip, but after booting the kernel I have only between 200-300 KB free. I...
Altera_Forum's avatar
Altera_Forum
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21 years ago

Hi Goon,

The slab layer manages the small data structures frequently allocated and freed by kernel. For example, process descriptors, inodes, etc are all from it. Since kernel needs allocate all kinds of structures in order to run, and will automatically try to free memory from it when system available memory is low, I don't think you can squeeze much from the 512K.

Regards,

wentao