Re: Arjan's noinline Patch

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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

	17674 byte difference (0.4%) in text.

	128142 byte difference (0.6%) in text.

Unless my math is off, that is.

[Name      ]   ::  [Matan I. Peled    ]
[Location  ]   ::  [Israel            ]
[Public Key]   ::  [0xD6F42CA5        ]
[Keyserver ]   ::  []
encrypted/signed  plain text  preferred

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