Linux kernel/Image Size: Difference between revisions
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== Vision == | == Vision == | ||
Reduce the flash and memory footprint of the linux-yocto generated kernel to boot with 8MB of memory and allow for a minimal image in under 8MB of flash. | Reduce the flash and memory footprint of the linux-yocto generated kernel to boot with 8MB of memory and allow for a minimal image in under 8MB of flash. The uncompressed kernel image should come in around 1.5MB. Changes to the kernel shall not impact POSIX compliance. | ||
== Design == | == Design == | ||
Revision as of 20:17, 22 June 2011
Vision
Reduce the flash and memory footprint of the linux-yocto generated kernel to boot with 8MB of memory and allow for a minimal image in under 8MB of flash. The uncompressed kernel image should come in around 1.5MB. Changes to the kernel shall not impact POSIX compliance.
Design
Resources
- http://elinux.org/Kernel_Size_Tuning_Guide
- http://elinux.org/Kernel_Size_Tuning_Guide_Config_Option_Impact
- http://elinux.org/System_Size
- http://elinux.org/Linux_Tiny
Results
Initial Beagleboard (refresh v2 21-Jun-2011)
$ ls -la ./arch/arm/boot/uImage -rw-rw-r-- 1 dvhart dvhart 2738416 2011-06-20 23:19 ./arch/arm/boot/uImage $ size ./arch/arm/boot/vmlinux text data bss dec hex filename 5527685 338944 272776 6139405 5dae0d ./arch/arm/boot/vmlinux
