On Tue, 10 Sep 2019 15:41:14 -0400
Przemek Klosowski via devel <devel(a)lists.fedoraproject.org> wrote:
Wait---so you are using 32-bit Gnome on a 64-bit capable CPU running
64-bit kernel? If the reason is to save 200MB of memory, you should
definitely try one of the memory-thrifty desktop environments like
xfce.
You also said that you're running a memory-hungry non-Fedora
application, which you presumably compile yourself.
Therefore, it looks to me that you should try a 64-bit Fedora with a
memory-saving xfce, install a 32-bit GCC toolchain and compile your
app in 32-bit mode.
This, a perfectly adequate solution. Or LXDE or mate or LXQt or fvwm
or just X with a simple xterm that he uses to start his custom app. I
think cinnamon or KDE would be roughly the same size as Gnome, so
probably not viable alternatives to reduce memory usage.
He could also compile a custom kernel tuned to his hardware from the
x86_64 src.rpm, so it is smaller. The spec file could even be set up to
build a 686 kernel from the source, if that is what he wants. He would
have to fix any problems himself, though, to do that. He could share
his results in copr for anyone wanting such a kernel.
https://fedoraproject.org/wiki/Building_a_custom_kernel
koji for the kernel
https://koji.fedoraproject.org/koji/packageinfo?packageID=8