On Thu, February 12, 2009 12:52 pm, Zhang Jun wrote: > Hi list, > > my laptop's cpu is AMD Turion64x2, I've installed both 32bits Debian > testing and Gentoo on it, > from Debian there is no SSE3 in /proc/cpuinfo, > and I used CFLAGS="-O2 -march=athlon-xp -fomit-frame-pointer -pipe" on > gentoo, and I can not see SSE3 in cpuinfo also, > > I emerged x86info, and SSE3 is in its output: > > #x86info > x86info v1.21. Dave Jones 2001-2007 > Feedback to <da...@redhat.com>. > > Found 2 CPUs > -------------------------------------------------------------------------- <snipped output>
> my question is: I can not see SSE3 in cpuinfo because I did not use > "-msse3" in CFLAGS ? Hi, I would suspect that for your CPU using "-march=athlon-fx" would be more beneficial as your CPU has the x86_64 instruction set as well? -- Joost
