Linux compatible setaffinity.

Robert Watson rwatson at FreeBSD.org
Sat Dec 22 10:37:51 PST 2007


On Fri, 21 Dec 2007, David Xu wrote:

> I don't say no to these interfaces, but there is a need to tell user which 
> cpus are sharing cache, or memory distance is closest enough, and which cpus 
> are servicing interrupts, e.g, network interrupt and disks etc, etc, 
> otherwise, blindly setting cpu affinity mask only can shoot itself in the 
> foot.

While the Mac OS X API is pretty Mach-specific, it's worth taking a look at 
their recently-announced affinity API:

http://developer.apple.com/releasenotes/Performance/RN-AffinityAPI/index.html

Robert N M Watson
Computer Laboratory
University of Cambridge


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