Re: [PATCH] recipes-initramfs/compress-initrd: add recipe to compress initrd with xz

[Jan Kiszka <jan.kiszka@siemens.com>]

On 13.05.24 07:47, Srinuvasan Arjunan wrote:
> 
> 
> On Mon, May 13, 2024 at 10:57 AM 'Jan Kiszka' via isar-users
> <isar-users@googlegroups.com <mailto:isar-users@googlegroups.com>> wrote:
> 
>     On 13.05.24 07:26, srinuvasan.a@siemens.com
>     <mailto:srinuvasan.a@siemens.com> wrote:
>     > From: srinuvasan <srinuvasan.a@siemens.com
>     <mailto:srinuvasan.a@siemens.com>>
>     >
>     > By default initrd compressed with zstd tool, with the present
>     bullseye base image
>     > of amd64 the initrd size is almost 27MB, this can be reduced with
>     the help of xz tool,
>     > using this one the generated initrd size is almost 18MB, we saved
>     almost 9MB.
>     >
> 
>     Isn't that just a matter of increasing the compression rate of zstd? It
>     seems xz is getting out of fashion generally, and it comes with higher
>     decompression load.
> 
>     Jan
> 
> 
>   Sorry, its not zstd tool, the default one is gzip (wrongly captured in
> commit message), Just i pushed this patch for very limited memory
> requirement embedded devices, in this case i considered the memory
> requirement not a decompression load.
> 

OK, but then not hard-code the tool used for compression, rather make it
configurable.

Jan

-- 
Siemens AG, Technology
Linux Expert Center