4.2 Architectures and processors

4.2.1. Does FreeBSD support architectures other than the x86?
4.2.2. Does FreeBSD support Symmetric Multiprocessing (SMP)?

4.2.1. Does FreeBSD support architectures other than the x86?

Yes. FreeBSD currently runs on the Intel x86 and DEC (now Compaq) Alpha architectures. As of FreeBSD 5.0, the AMD64 and Intel EM64T, IA-64, and Sparc64® architectures are also supported. Upcoming platforms are MIPS® and PowerPC®, join the FreeBSD PowerPC porting mailing list or the FreeBSD MIPS porting mailing list respectively for more information about ongoing work on these platforms. For general discussion on new architectures, join the FreeBSD non-Intel platforms porting mailing list.

If your machine has a different architecture and you need something right now, we suggest you look at NetBSD or OpenBSD.

4.2.2. Does FreeBSD support Symmetric Multiprocessing (SMP)?

Yes. SMP was enabled by default in the GENERIC kernel as of FreeBSD 5.2.

The intention was also to enable it by default for the FreeBSD 5.3 release, but problems running the SMP kernel on certain UP machines led to the decision to disable it until those problems can be addressed. This is a priority for FreeBSD 5.4.

This, and other documents, can be downloaded from ftp://ftp.FreeBSD.org/pub/FreeBSD/doc/.

For questions about FreeBSD, read the documentation before contacting <questions@FreeBSD.org>.
For questions about this documentation, e-mail <doc@FreeBSD.org>.