Re: Arjan's noinline Patch

[Matan Peled <chaosite@gmail.com>]

Kurt Wall wrote:
> Right, I need to isolate the effects of each variable. Results for gcc 
> 3.4.4 and 4.0.2, built with CONFIG_CC_OPTIMIZE_FOR_SIZE enabled, appear
> below. Pardon the bad methodology.
> 
> $ size vmlinux.*
>    text    data     bss     dec     hex filename
> 2333474  461848  479920 3275242  31f9ea vmlinux.344.inline
> 2327319  462000  479920 3269239  31e277 vmlinux.344.noinline
> 2319085  461608  479984 3260677  31c105 vmlinux.402.inline
> 2313578  461800  479984 3255362  31ac42 vmlinux.402.noinline

Yes, thats more like the rest of the results I seen... BTW, what is the .config?

Here are my results. Kernel is 2.6.15-rc7, gcc is 4.0.2 (Gentoo 4.0.2-r2, 
HTB-4.0.2-1.00, pie-8.7.8)

'ay' denotes allyesconfig, def is defconfig.

I believe that neither of these have OPTIMIZE_FOR_SIZE turned on, but I didn't 
play with that.

allyesconfig made a huge kernel, so I manually 'fixed' the formatting.

kaitou inlinetest # size *def*
    text	   data	    bss	    dec	    hex	filename
3676326	1084576	 584920	5345822	 51921e	vmlinux.def.inline
3658652	1085168	 584920	5328740	 514f64	vmlinux.def.noinline


kaitou inlinetest # size *ay*
     text	   data	    bss	     dec	    hex	filename
22911557	7523774	1997000	32432331	1eee0cb	vmlinux.ay.inline
22783415	7525934	1997000	32306349	1ecf4ad	vmlinux.ay.noinline


defconfig:
	17674 byte difference (0.4%) in text.

allyesconfig:
	128142 byte difference (0.6%) in text.

Unless my math is off, that is.

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