健忘的工程師筆記本

./scripts/dtc/dtc -I dtb -O dts -o devicetree.dts devicetree.dtb $ sudo apt-get install device-tree-compiler $ dtc -I dtb -O dts juno.dtb > juno.dts $ dtc -I dts -O dtb juno.dts > juno.dtb   reference: https://forum.digilentinc.com/topic/2427-how-to-decompile-dtb-file/ Device Tree, reference: Device Tree（一）：背景介绍  http://www.wowotech.net/device_model/why-dt.html Device Tree（二）：基本概念  http://www.wowotech.net/device_model/dt_basic_concept.html Device Tree（三）：代码分析  http://www.wowotech.net/device_model/dt-code-analysis.html Device Tree（四）：文件结构解析 http://www.wowotech.net/device_model/dt-code-file-struct-parse.html x

reference:  https://ownyourbits.com/2017/09/13/copy-with-a-progress-bar-with-cpv/

Better Linux Disk Caching & Performance with vm.dirty_ratio & vm.dirty_background_ratio reference :          https://feichashao.com/dirty_ratio_and_dirty_background_ratio/         https://lonesysadmin.net/2013/12/22/better-linux-disk-caching-performance-vm-dirty_ratio/

error: The following untracked working tree files would be overwritten by checkout: Remove all untracked files: git clean  -d  -fx . -x means ignored files are also removed as well as files unknown to git. -d means remove untracked directories in addition to untracked files. -f is required to force it to run. reference: https://mirrors.edge.kernel.org/pub/software/scm/git/docs/git-clean.html https://stackoverflow.com/questions/17404316/the-following-untracked-working-tree-files-would-be-overwritten-by-merge-but-i/35067275