True, but I'd expect that to be dwarfed by the I/O time required to load even a single 4k page from disk, vs. keeping one copy of a big dynamic library like glibc loaded for the whole system, with fixups done per-process.

Good points about ASLR and static-linking frequently-exec'd-and-exited processes like the shell; and certainly for embedded and HPC it makes sense. I guess the moral, as always, is to measure.