Re: Debian kernel vs custom kernel ram usage
On Thu, Feb 12, 2015 at 09:04:56AM +0100, Jog Lie wrote:
>
> The question first :
>
> Are you doing something special to compile the kernel? Any hint ?
>
> The story :
>
> I downloaded a few month ago the debian kernel 3.12-0 bpo for amd64 arch.
> It is based on vanilla 3.12.9 as it seems.
>
> I downloaded the same version from kernel.org and fitted it to my configuration.
>
> I systematically consume 4 Mb more ram than the generic kernel (yours).
>
> The kernel is compiled with the command :
> make -j3 && make INSTALL_MOD_STRIP=1 modules_install && make install
>
> How is it possible to have less options, just the one that fit, and still use more ram in the OS at startup?
> (boot with no graphical front end and issuing a "free -m").
we do have a minor patchset on top of latest Linux, one that helps
in that regard is disabling cgroups by default.
try to apply it and see if it makes the diff for you too.
happy hacking.
--
maks
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