Messages in this thread | | | Date | Wed, 18 Jul 2007 20:33:59 +0200 | From | Adrian Bunk <> | Subject | Re: Patches for REALLY TINY 386 kernels |
| |
On Wed, Jul 18, 2007 at 08:55:50AM -0700, H. Peter Anvin wrote: > Andi Kleen wrote: > > > >> Already with these patches I can compile a zImage kernel that is 450kb > >> large (890kb decompressed) > > > > The important part is not how big the vmlinux is, but how much > > memory is actually used after boot. > > > > I expect concentrating some of the dynamic data structures would > > be more fruitful in fact. > > > > Well, how big the vmlinux file is matters if it doesn't fit in memory > with enough time to get to the phase where it is dumping the init > sections. *If that is not the issue*, then axing stuff like CPUID is a > major lose in terms of code maintainability for zero gain.
If this is an issue, then changing i386 back to discarding __exit code and data at linktime instead of runtime might make a bigger difference.
> -hpa
cu Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |