> Does this emulation take a considerable performance hit, as opposed to > running on armhf hardware/kernel, where the instruction doesn't appear > to be listed as deprecated?
I'd expect the kernel-emulated instruction to be much slower than any non-emulated instruction, but the overall effect on performance will, of course, depend on how often the instruction is used. See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864847 (where I think I claimed that the instruction is deprecated on armhf hardware but I could easily be wrong)
