On Thu, 5 Oct 2017, Rob Herring wrote: > On kernels with a minimal config and a RAM target in the 100s of KB, DT > is quite a hog of runtime memory usage. How much is dependent on how many > nodes and properties in the DT which have a corresponding struct device_node > and struct property in the kernel. Just skipping disabled nodes saves a > lot by not creating the device_nodes in the first place[1], but there's > more low hanging fruit by making some of the fields in struct property and > struct device_node optional. With the changes here, the memory usage goes > from 17KB to under 8KB on QEMU's ARM virt machine which is a relatively > small DT. My test case went from 118072 bytes ddown to 21548 bytes with this series. Tested-by: Nicolas Pitre <nico@xxxxxxxxxx> Nicolas -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
