Re: Unicode support on VGA console.
H. Peter Anvin (hpa@transmeta.com)
Tue, 05 Oct 1999 13:18:08 -0700
Jan Bobrowski wrote:
>
> On 4 Oct 1999, H. Peter Anvin wrote:
> > The limit is 512, not 256. Anyhow, it has been agreed that this
> > really takes too much kernel memory; [...]
>
> Why? It takes 16KB (it can be slightly compressed), eg. NLS translation
> tables waste 768 bytes each (probably more) and they are in the kernel.
> Inode structure takes more than 256 bytes (because ext2 private fields
> are so big without reason)...
>
> Nobody will use unicode on low-end i386 router because it's usable
> only on workstation anyway. Workstations have 16MB at least so it takes
> 1/1000 unswapable memory at most. Memory cost is not importand.
>
If you are short enough on kernel memory that you don't want to use a
framebuffer -- which doesn't have the hardware character limit -- then
it does matter. If not, you're better off using a framebuffer rather
than swapping the CRTC tables on the fly -- it's always going to work.
-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
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