On Thu, 31 Jul 2008, Dmitry Torokhov wrote:

quoted text
> > For example, for the kernel, I can literally rebuild my whole kernel 
> > (which is just what I use on _that_ machine) in about 16 seconds. This is 
> > _not_ using ccache or anything else - it's rebuilding the whole tree with 
> > -j16.
> 
> Is it after make mrproper (wow)?

Yeah. It's after doing

	git clean -dqfx
	make oldconfig

where I tend to use "git clean -dqfx" instead of "make mrproper" these 
days. 

Note that my "oldconfig" really only does the things I need, so this is 
_not_ a "allmodconfig" or anything like that. That would take much longer. 
It only has the drivers I use, and the stuff I actually need (it's not a 
embedded kernel in any way, but it's definitely pared down config exactly 
because I like being able to rebuild my kernels without wasting time on 
thousands of drivers that I can't use anyway).

Other people can do the "does it compile?" testing. Not worth my time, I 
feel ;)

quoted text
> Because for me (and well, I dont have that beefy boxes as you do) 
> swithing between "for-linus" and "next" that based off a revision in 
> vicinity of 2.6.xx-rc1 and "work" which tracks the tip of your tree 
> takes time to rebuild.

Well, the difference really is the beefy box. And the fact that I hate 
modules, and I hate building stuff that I don't actually need. 

I literally turn off CONFIG_MODULES entirely. 

			Linus
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