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Does OpenBSD support SMP?

April 26, 2017multi openbsd processor SMP support Symmetric

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Does OpenBSD support SMP?

1 Answer

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10 Posted

SMP is supported on the OpenBSD/i386, OpenBSD/amd64, OpenBSD/mvme88k, and OpenBSD/sparc64 (including the UltraSPARC T1 processors) platforms. A separate SMP kernel, “bsd.mp”, is provided with the install file sets, which can be selected at install time. It is suggested that you test booting this kernel before renaming it to “bsd” to make it your default kernel. It is hoped that other SMP-capable platforms will be supported in the future. On most other platforms, OpenBSD will run on an SMP system, but only utilizing one processor. The exception to this is the SPARC platform — OpenBSD/sparc will sometimes require that extra MBus modules be removed for the system to boot.