Re: Kernel code: executing once on each CPU?

Julian Elischer <[email protected]> Tue, 03 Feb 2009 10:54:12 -0800
Newsgroups gmane.os.freebsd.devel.smp
Message-ID <[email protected]>
Martin Cracauer wrote:
> Is there a facility in FreeBSD that allows me to have a piece of code
> executed on each processor, then return to the original thread when
> that has been completed?
> 
> I need to collect some data that's local to the individual CPUs/cores.
> 
> In Linux there is/was smp_call_function(func, ...).

no, though it might  be useful.

the rmlock facility does this in order to do its work (from memory)
and it would be a useful thing..
I'd even suggest that it take a bitmask of required CPUs.
that can be used in conjuction with the cpu set stuff.


> 
> Martin

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