I agree with Ellotheth that it seems like there's an opportunity to come up with a good optimization doc but the paper is interesting. The answers might not be the same for P4 vs. AMD vs. sparc vs. Apple. Maybe a suite of files that get compiled, generate the numbers and instruct you what might work best?
Interesting info. thanks. - Mark On 9/3/05, Volker Armin Hemmann <[EMAIL PROTECTED]> wrote: > On Sunday 04 September 2005 05:27, [EMAIL PROTECTED] wrote: > > > > > That list shows pentium4, mmx, sse, and sse2. Also, if you have *ANY* > > version of sse available, you can improve performance by running floating > > point math via sse, rather than 387 instructions. I recommend... > > > > CFLAGS="-O2 -pipe -fomit-frame-pointer -march=pentium4 -mmmx -msse -msse2 > > -mfpmath=sse" > > > > > > emm. I would not do this. > > > -mfpmath=sse seems to be slower than -fpmath=387 > > http://www.anandtech.com/mac/showdoc.aspx?i=2436&p=5 > > has the numbers/made the experience. > > It seems, that gcc is not he best optimizer in the world ;) > -- > [email protected] mailing list > > -- [email protected] mailing list
