Currently one of our application runs in an embedded Linux OS inside an Intel Atom (32-bits). However, due hardware reducing costs for long term, we are migrating to Intel Atom 64-bits. So, I’m investigating some ways to still run our applications on 32-bits, and taking advantages of running on 64-bits. But without the overhead as our application fits on 32-bits.
One of the ways is to use what is called x32 ABI. The idea is to build Erlang/OTP for x32. I got some time and did some experiments here: Exploring x32 psABI for Erlang/OTP | meta-erlang. It worked after applying two patches. But further tests are need in order to check if everything still works.
What do you think ? Have you ever tried x32 builds for Erlang/OTP ?
For my context, the idea of x32 is very persuasive, and looks feasible. But I don’t know if it is practical.