To allow us to upgrade to the latest binutils we ended up enabling building of gold. Unfortunately this is clearly visible on our performance benchmarks, it leads to a 3-4 minute speed loss in overall build time :(.
Locally, benchmarks for building binutils-cross show: Just ld: 95.87user 48.36system 1:05.66elapsed 219%CPU (0avgtext+0avgdata 162480maxresident)k 0inputs+1030184outputs (0major+7753895minor)pagefaults 0swaps with gold: 366.22user 67.25system 1:14.29elapsed 583%CPU (0avgtext+0avgdata 435488maxresident)k 248inputs+1205792outputs (1major+12572236minor)pagefaults 0swaps richard@dax:/media/build1/poky/build2$ So whilst it only takes 10 seconds longer overall for me on what is a pretty powerful machine, you can see a huge increase in user time and CPU usage. I believe that on our slower quad core performance benchmark machine, this equates to a few minutes. The question is therefore, do we have a better way to fix things? Is this performance drop acceptable? Cheers, Richard -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
