"cpuset -n prefer:?" --what values for "?" are supposed to be allowed? (only 1 is, despite two numa domains)
Mark Johnston
markj at freebsd.org
Wed Sep 11 14:31:33 UTC 2019
On Tue, Sep 10, 2019 at 10:58:05PM -0700, Mark Millard wrote:
> In a context with:
>
> # cpuset -g
> pid -1 mask: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27
> pid -1 domain policy: first-touch mask: 0, 1
>
> I get:
>
> # cpuset -l0 -n prefer:0 COMMAND
> cpuset: setdomain: Invalid argument
>
> # cpuset -l0 -n prefer:2 COMMAND
> cpuset: setdomain: Invalid argument
>
> But one prefer:? value does allow the COMMAND
> to run:
>
> # cpuset -l0 -n prefer:1 COMMAND
>
> This seem odd to me. Am I missing something?
>
> For reference: I'm using a ThreadRipper 1950X
> with a head -r351227 based context for this
> activity. The above happens to have been run
> in a Windows 10 Pro HyperV session, instead
> of in a native-boot of the same media. (A
> native-boot would have had 32 CPUs.)
Can you please show the output of "sysctl vm.phys_segs" from this
setup?
More information about the freebsd-current
mailing list