Messages in this thread | | | Date | Tue, 3 Apr 2007 19:55:38 -0700 | From | Paul Jackson <> | Subject | Re: getting processor numbers |
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Andrew wrote: > > But all this of course does not solve the issue sysconf() has. In > > sysconf we cannot use sched_getaffinity since all the systems CPUs must > > be reported. > > OK. > > This is excecptionally gruesome, but one could run sched_getaffinity() > against pid 1 (init). Which will break nicely in the OS-virtualised future > when the system has multiple pid-1-inits running in containers...
That nicely breaks on typical cpuset managed systems as well, which frequently put init into a small cpuset (with the classic Unix daemon and login load), leaving the bulk of the system to be managed by a batch scheduler.
-- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson <pj@sgi.com> 1.925.600.0401 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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