Speed of the compiler itself. I understand it's not related to the benchmark discussion as such but it's the first thing someone will notice new to rust. Compiling rust itself takes for ages.
Yes, I would like to spend time in the next release cycle working on compiler performance. To start with, I have a patch that improves performance of translation by 15%.
brson and I have been discussing using stage0 LLVM for subsequent stages, so that LLVM itself won't have to be compiled. This should reduce the amount of time required to compile Rust by a lot.
Ouch. Did you run the build with multiple jobs? (Parallel builds have been a bit messed up because of fetching the bootstrap, but you can coax it into working.)
I don't think I've actually tried that, except on my netbook (conclusion: don't try to build Rust on a netbook.) I have made a habit of typing supplying `-j 8` to make. Note: if it hasn't been fixed yet, you'll need to fetch the bootstrap compiler before that will work.