Re: [Xen-devel] [PATCH v3 01/15] docs: L2 Cache Allocation Technology (CAT) feature document.

[Yi Sun <yi.y.sun@xxxxxxxxxxxxxxx>]

On 16-11-29 13:22:41, Dario Faggioli wrote:
> On Tue, 2016-11-29 at 12:52 +0800, Yi Sun wrote:
> > On 16-11-25 18:39:41, Dario Faggioli wrote:
> > > On Tue, 2016-10-25 at 11:40 +0800, Yi Sun wrote:
> > > > +* xl interfaces:
> > > > +
> > > > +  1. `psr-cat-show [OPTIONS] domain-id`:
> > > > +
> > > > +     Show domain L2 or L3 CAT CBM.
> > > > +
> > > > +     New option `-l` is added.
> > > > +     `-l2`: Specify cbm for L2 cache.
> > > > +     `-l3`: Specify cbm for L3 cache.
> > > > +
> > > > +     If neither `-l2` nor `-l3` is given, level 3 is the default
> > > > option.
> > > > +
> > > Sorry for saying this only now, but wouldn't it be more natural, if
> > > neither -l2 not -l3 is specified, to show both (or, in general, all
> > > that is supported)?
> > > 
> > This is for backward compatibility. The original command only
> > supports
> > L3 CAT and it does not have '-l' option.
> > 
> > But for show command, your suggestion is good. We can show both or
> > prompt user if any one is not supported.
> > 
> I don't understand. I was actually talking about 'show' already, basing
> on this that I see in the patch:
> 
> +  1. `psr-cat-show [OPTIONS] domain-id`:> > > 
> +
> +     Show domain L2 or L3 CAT CBM.
> 
Sorry for confusion. I agree with your suggestion and will try to change
codes to show both L2 and L3. 

> However, now that I look better, I notice that, when explaining the
> options, you write "Specify cbm for L2 cache.", which is not what I
> expect show to do. Shouldn't that say "Show" or "Display"?
> 
> Cut-&-paste error (from below), or there is really something I'm
> missing?
> 
Oh, sorry. It is a Cut-Paste error. Should be 'Show cbm of L2 cache'.

Thanks for finding out this error!

> > > > +  2. `psr-cat-cbm-set [OPTIONS] domain-id cbm`:
> > > > +
> > > > +     Set domain L2 or L3 CBM.
> > > > +
> > > > +     New option `-l` is added.
> > > > +     `-l2`: Specify cbm for L2 cache.
> > > > +     `-l3`: Specify cbm for L3 cache.
> > > > +
> > > > +     If neither `-l2` nor `-l3` is given, level 3 is the default
> > > > option.
> > > > +
> 
> Regards,
> Dario
> -- 
> <<This happens because I choose it to happen!>> (Raistlin Majere)
> -----------------------------------------------------------------
> Dario Faggioli, Ph.D, http://about.me/dario.faggioli
> Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)



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