Joerg Wunsch wrote on Sonntag, 22. Januar 2006 15:22 : > As David Carr wrote: > > I just rebuilt my toolchain with gcc 3.4.5 (and Jorg's FreeBSD > > patches). How does the performance of 4.0.2 compare? I see that > > the 3.4.x series is still reccommended in the avr-libc > > documentation. > > Well, the avr-libc's idea should not count as `recommendation' here, > at least not against trying a more recent version if available. Take > this rather as a minimal version to use. Hi,
I now have been working with 4.0.x for quite a while with real production projects. It is my impression that it performs considerably better than 3.4.x. Maybe this is because we are frequently using 32 bit variables. In the beginning I had some serious objections because I had observed clobbered frame pointers in earlier versions of 4.0.x. Since quite a while this problem has been solved. For our production code, I interestingly observed that 4.1.x yields slightly worse results than did 4.0.x (concerning code size). The relative performance of the different versions probably obviously depends on your code. Yours, Bjoern. _______________________________________________ AVR-libc-dev mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-libc-dev
