From: Paul M. <le...@li...> - 2007-09-10 07:09:19
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On Mon, Sep 10, 2007 at 03:58:21PM +0900, Yuichi Nakamura wrote: > On Mon, 10 Sep 2007 14:56:25 +0900 > Paul Mundt wrote: > > On Mon, Sep 10, 2007 at 02:37:04PM +0900, Yuichi Nakamura wrote: > > > I would like to try newer gcc. > > > > > > > http://userweb.kernel.org/~lethal/gnush4_linux_v0702_rc-1-1.i386.tar.gz > Thanks, It is useful! > I used gcc in above and compiled kernel. > > I found that performance does not get better when compiled by 4.2.1. > Even 3.4.5 is better??? > What optimization levels are you using to compile the kernel? Try with and without -Os to see if there's a measurable impact. From the sounds of it you're still going to have to do the manual inlining work if there's no change in the common case, at least. |