embeded/ARM2015. 4. 8. 17:06

mkfs.jffs2 옵션에 -x를 주면 압축을 안하는 듯?

jffs2를 압축하면 실시간으로 계속 압축 / 해제 하니까 저사양 cpu에서는 무리가 올테니..

나중에 한번 부팅속도 라던가 벤치마크 해보거나

벤치마크 결과를 찾아봐야겠다.


       -m, --compression-mode=MODE

              Set  the  default compression mode. The default mode is priority

              which tries the compressors in a predefinied order  and  chooses

              the  first successful one. The alternatives are: none (mkfs will

              not compress) and size (mkfs will try all compressor and chooses

              the one which have the smallest result).


       -x, --disable-compressor=NAME

              Disable  a  compressor.  Use  -L to see the list of the avaiable

              compressors and their default states.


       -X, --enable-compressor=NAME

              Enable a compressor. Use -L to see  the  list  of  the  avaiable

              compressors and their default states.


       -y, --compressor-priority=PRIORITY:NAME

              Set  the priority of a compressor. Use -L to see the list of the

              avaiable compressors and their default priority.  Priorities are

              used by priority compression mode.


       -L, --list-compressors

              Show the list of the avaiable compressors and their states.


       -t, --test-compression

              Call  decompress  after  every compress - and compare the result

              with the original data -, and some other check.

[링크 : http://manpages.ubuntu.com/manpages/saucy/man1/mkfs.jffs2.1.html] 


[링크 : http://en.wikipedia.org/wiki/JFFS2]


[링크 : http://elinux.org/images/9/9a/CELFJamboree29-FlashFS-Toshiba.pdf] jffs2 / yaffs / ubifs 벤치마크

[링크 : http://www.denx.de/wiki/view/DULG/RootFileSystemOnAJFFS2FileSystem] 만드는 법

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