On 01/11/2010 03:09 PM, Christopher Chan wrote: > Timothy Lee wrote: >> On 01/11/2010 02:29 PM, Christopher Chan wrote: >>> Wow. There are Pentium machines still running out there? >>> You do know that Pentium optimizations are only for Pentiums and that >>> such binaries could actually run slower on anything Pentium-II/Pentium >>> Pro and above than i386 (actually i486 optimized binaries iirc - must >>> check gcc) optimized binaries due to the architecture differences of the >>> Pentium? >> Got some VIA C3 processors that absolutely refuse to run i686 kernels. > Yeah, who knows what has been turned on on those i686 kernels. >> They were running on Fedora 7, but that's getting too abandoned for any >> good. > http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html > > Try C3 optimization instead then. So instead of compiling for i586 targets, is it then better to patch the CentOS-5 kernel so that it uses "-mtune=c3" during compilation? (There appears to be only a CONFIG_MVIAC3_2 param in the .config file) Regards, Timothy
