On Mon, 2009-06-15 at 19:50 -0400, Bill Nottingham wrote: > drago01 (drago01@xxxxxxxxx) said: > > > Way back when in February [1], FESCo decided that for Fedora 11, i586 would > > > be the default architecture, and for Fedora 12, it would be some variant of > > > i686. It's time to follow through on that action item. > > > > Moving to i686 is fine, non i686 chips are mostly dead (but the > > perfomance gain from moving to i686 from i586 is questionable at > > best). > > ... how so? It's consistently 1-2% in reasonable benchmarks (real-world > code, albeit cpu-specific). Dan of Dan's Data has a rule of thumb I've always found sensible, which is that any performance increase less than 5% is not worth putting yourself to any kind of trouble for. Has anyone benchmarked i686+SSE2 vs. i686 yet? It would seem a prerequisite for such a controversial proposal. And in general-purpose apps, not stuff that's known to benefit from it like media encoding (which we have ways to handle without stuffing up the entire distro for slightly old hardware). -- Adam Williamson Fedora QA Community Monkey IRC: adamw | Fedora Talk: adamwill AT fedoraproject DOT org http://www.happyassassin.net -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
