Why can't you just leave it as-is? I mean is 1% improvement (for cpu intensive workload) really worth changing anything? Instead of messing arround with stuff like that, I guess a lot of code would benefit of beeing build with profile driven optimizations, which often yields a 5-15% improvement without sacrifycing anything. On amd64 it would even enable the auto-vectorizer (if enabled) to vectorize only parts which count, without bloating code unescessary. However that would be _real_ work, instead of just changing switches and discussing it forth and back ;) - Clemens -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list