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Re: [Lzip-bug] I have some practical question about lzip patch for linu
Re: [Lzip-bug] I have some practical question about lzip patch for linux kernel (about lzip-ed kernel modules)
Fri, 20 Apr 2018 06:15:00 +0200
I can test it if it's not too complicated. I mean I know how to compile kernel and run new one but don't know what's kmod is all about so you'll need to give some source where I can read about it bit more.
When it comes to modules I made small test and result should be self explaining:
~/tmp/modules $ for DIR in `ls -1`; do du -sk $DIR; done
242644 236.95[MiB] modules
69848 68.21[MiB] modules-gz
55848 54.54[MiB] modules-lz
55812 54.50[MiB] modules-xz
123776 120.87[MiB] modules-s
45652 44.58[MiB] modules-s-gz
41844 40.86[MiB] modules-s-lz
41756 40.78[MiB] modules-s-xz
So the difference for unstripped modules is 20% less (than gzip) for lzma but for unstripped modules it's 8%.
Is it only 8% or <antonym to only> 8% is question of interpretation in this case but generally compressing unused modules is definitely good thing. In my case modules in memory take 14MiB, so saving 180/80[MiB] is definitely a good thing even today when computers have tons of RAM.