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SubjectRe: [PATCH 2/2] x86: Cleanup boot CPUs table

* Borislav Petkov <bp@alien8.de> wrote:

> On Sat, Sep 28, 2013 at 10:25:42AM +0200, Ingo Molnar wrote:
> > Could we, with another add-on patch, further compress the first half
> > of the output as well?
> >
> > Advanced output like this would be really cool:
>
> Sure.
>
> > > [ 0.074509] x86: Booting node #0, CPUs: #1 #2 #3 #4 #5 #6 #7
> > > [ 0.644008] x86: Booting node #1, CPUs: #8 #9 #10 #11 #12 #13 #14 #15
> > > [ 1.245006] x86: Booting node #2, CPUs: #16 #17 #18 #19 #20 #21 #22 #23
> > > [ 1.864005] x86: Booting node #3, CPUs: #24 #25 #26 #27 #28 #29 #30 #31
> > > [ 2.489005] x86: Booting node #4, CPUs: #32 #33 #34 #35 #36 #37 #38 #39
> > > [ 3.093005] x86: Booting node #5, CPUs: #40 #41 #42 #43 #44 #45 #46 #47
> > > [ 3.698005] x86: Booting node #6, CPUs: #48 #49 #50 #51 #52 #53 #54 #55
> > > [ 4.304005] x86: Booting node #7, CPUs: #56 #57 #58 #59 #60 #61 #62 #63
> > > [ 4.961413] x86: Booted up 8 nodes, 64 CPUs
>
> Boot(ing|ed) kinda wastes unnecessary space too, how about we go a step
> further:
>
> [ 0.074509] x86: Booting SMP configuration:
> [ 0.644008] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7
> [ 1.245006] .... node #1, CPUs: #8 #9 #10 #11 #12 #13 #14 #15
> [ 1.864005] .... node #2, CPUs: #16 #17 #18 #19 #20 #21 #22 #23
> [ 2.489005] .... node #3, CPUs: #24 #25 #26 #27 #28 #29 #30 #31
> [ 3.093005] .... node #4, CPUs: #32 #33 #34 #35 #36 #37 #38 #39
> [ 3.698005] .... node #5, CPUs: #40 #41 #42 #43 #44 #45 #46 #47
> [ 4.304005] .... node #6, CPUs: #48 #49 #50 #51 #52 #53 #54 #55
> [ 4.961413] .... node #7, CPUs: #56 #57 #58 #59 #60 #61 #62 #63
> [ 5.245021] x86: Booted up 8 nodes, 64 CPUs
>
>
> [ 0.074509] x86: Booting SMP configuration:
> [ 0.072367] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7
> [ 0.686329] x86: Booted up 1 node, 8 CPUs

Nice!

> Btw, the "x86" prefix would mean we want to either change pr_fmt() of
> arch/x86/kernel/smpboot.c (which I rather not) or not use pr_info (which
> I'd prefer).

Not using pr_info() for such specially formatted output is fine I think.

Thanks,

Ingo


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