From: Yi Sun <yi.y.sun@linux.intel.com>
To: "Roger Pau Monn�" <roger.pau@citrix.com>
Cc: kevin.tian@intel.com, wei.liu2@citrix.com,
andrew.cooper3@citrix.com, dario.faggioli@citrix.com,
ian.jackson@eu.citrix.com, julien.grall@arm.com,
mengxu@cis.upenn.edu, jbeulich@suse.com,
chao.p.peng@linux.intel.com, xen-devel@lists.xenproject.org,
dgdegra@tycho.nsa.gov
Subject: Re: [PATCH v3 01/15] docs: create Memory Bandwidth Allocation (MBA) feature document
Date: Wed, 20 Sep 2017 17:08:25 +0800 [thread overview]
Message-ID: <20170920090825.GS11006@yi.y.sun> (raw)
In-Reply-To: <20170920083613.2kva4x6iaqxlamuz@dhcp-3-128.uk.xensource.com>
On 17-09-20 09:36:13, Roger Pau Monn� wrote:
> On Wed, Sep 20, 2017 at 11:06:57AM +0800, Yi Sun wrote:
> > On 17-09-18 18:16:40, Roger Pau Monn� wrote:
> > > On Tue, Sep 05, 2017 at 05:32:23PM +0800, Yi Sun wrote:
> > > > +* xl interfaces:
> > > > +
> > > > + 1. `psr-mba-show [domain-id]`:
> > >
> > > Is this limited to domain-id, or one can also use the domain name?
> > > Most of the xl commands accept either a domain-id or a domain-name.
> > >
> > Both domain-id and domain-name can show it. I thought this is by default and
> > no need to explicitly declare. If I am wrong, I will change it as below:
> > `psr-mba-show [domain-id/domain-name]`
>
> [domain-id|domain-name]
>
> Would be better IMHO.
>
Thanks!
> > > > +
> > > > + 3. DOMCTL:
> > > > + - XEN_DOMCTL_PSR_MBA_OP_GET_THRTL: Get throttling for a domain.
> > > > + - XEN_DOMCTL_PSR_MBA_OP_SET_THRTL: Set throttling for a domain.
> > > > +
> > > > +* xl interfaces:
> > > > +
> > > > + 1. psr-mba-show [domain-id]
> > > > + Show system/domain runtime MBA throttling value. For linear mode,
> > > > + it shows the decimal value. For non-linear mode, it shows hexadecimal
> > > > + value.
> > > > + => XEN_SYSCTL_PSR_MBA_get_info/XEN_DOMCTL_PSR_MBA_OP_GET_THRTL
> > > > +
> > > > + 2. psr-mba-set [OPTIONS] <domain-id> <throttling>
> > > > + Set bandwidth throttling for a domain.
> > > > + => XEN_DOMCTL_PSR_MBA_OP_SET_THRTL
> > > > +
> > > > + 3. psr-hwinfo
> > > > + Show PSR HW information, including L3 CAT/CDP/L2 CAT/MBA.
> > > > + => XEN_SYSCTL_PSR_MBA_get_info
> > >
> > > 'psr-hwinfo' seems to be completely missing from the 'xl interfaces:'
> > > section above.
> > >
> > Because this is not a newly added interface, I do not describe it in 'xl
> > interfaces'. Is that necessary?
>
> Oh, OK, sorry for the noise. Then I guess it's not necessary to
> describe it here. Maybe a reference to where 'psr-hwinfo' is described
> would be nice (I assume there's a feature document somewhere that
> describes 'psr-hwinfo').
>
psr-hwinfo is firstly introduced in intel_psr_cat_cdp.pandoc. But MBA feature
adds a new sysctl interface 'XEN_SYSCTL_PSR_MBA_get_info' which is used by
psr-hwinfo. So, I describe it here again.
> Roger.
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next prev parent reply other threads:[~2017-09-20 9:09 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-05 9:32 [PATCH v3 00/15] Enable Memory Bandwidth Allocation in Xen Yi Sun
2017-09-05 9:32 ` [PATCH v3 01/15] docs: create Memory Bandwidth Allocation (MBA) feature document Yi Sun
2017-09-18 17:16 ` Roger Pau Monné
2017-09-19 6:07 ` Jan Beulich
2017-09-20 2:59 ` Yi Sun
2017-09-20 3:06 ` Yi Sun
2017-09-20 8:36 ` Roger Pau Monné
2017-09-20 9:08 ` Yi Sun [this message]
2017-09-05 9:32 ` [PATCH v3 02/15] Rename PSR sysctl/domctl interfaces and xsm policy to make them be general Yi Sun
2017-09-19 8:03 ` Roger Pau Monné
2017-09-20 3:12 ` Yi Sun
2017-09-05 9:32 ` [PATCH v3 03/15] x86: rename 'cbm_type' to 'psr_type' to make it general Yi Sun
2017-09-19 8:22 ` Roger Pau Monné
2017-09-05 9:32 ` [PATCH v3 04/15] x86: implement data structure and CPU init flow for MBA Yi Sun
2017-09-19 8:55 ` Roger Pau Monné
2017-09-20 3:22 ` Yi Sun
2017-09-20 7:11 ` Jan Beulich
2017-09-20 7:27 ` Yi Sun
2017-09-05 9:32 ` [PATCH v3 05/15] x86: implement get hw info " Yi Sun
2017-09-19 9:08 ` Roger Pau Monné
2017-09-20 5:05 ` Yi Sun
2017-09-05 9:32 ` [PATCH v3 06/15] x86: implement get value interface " Yi Sun
2017-09-19 9:15 ` Roger Pau Monné
2017-09-20 5:09 ` Yi Sun
2017-09-20 8:43 ` Roger Pau Monné
2017-09-20 9:22 ` Yi Sun
2017-09-20 16:02 ` Wei Liu
2017-09-05 9:32 ` [PATCH v3 07/15] x86: implement set value flow " Yi Sun
2017-09-19 9:57 ` Roger Pau Monné
2017-09-20 5:39 ` Yi Sun
2017-09-05 9:32 ` [PATCH v3 08/15] tools: create general interfaces to support psr allocation features Yi Sun
2017-09-19 10:04 ` Roger Pau Monné
2017-09-20 5:45 ` Yi Sun
2017-09-22 7:01 ` Chao Peng
2017-09-28 16:11 ` Wei Liu
2017-09-05 9:32 ` [PATCH v3 09/15] tools: implement the new libxc get hw info interface Yi Sun
2017-09-19 10:15 ` Roger Pau Monné
2017-09-20 6:13 ` Yi Sun
2017-09-05 9:32 ` [PATCH v3 10/15] tools: implement the new libxl " Yi Sun
2017-09-19 10:28 ` Roger Pau Monné
2017-09-20 6:20 ` Yi Sun
2017-09-05 9:32 ` [PATCH v3 11/15] tools: implement the new xl " Yi Sun
2017-09-19 10:32 ` Roger Pau Monné
2017-09-20 6:23 ` Yi Sun
2017-09-05 9:32 ` [PATCH v3 12/15] tools: rename 'xc_psr_cat_type' to 'xc_psr_type' Yi Sun
2017-09-19 10:34 ` Roger Pau Monné
2017-09-20 6:25 ` Yi Sun
2017-09-05 9:32 ` [PATCH v3 13/15] tools: implement new generic get value interface and MBA get value command Yi Sun
2017-09-19 11:02 ` Roger Pau Monné
2017-09-20 6:46 ` Yi Sun
2017-09-20 8:57 ` Roger Pau Monné
2017-09-20 9:11 ` Yi Sun
2017-09-05 9:32 ` [PATCH v3 14/15] tools: implement new generic set value interface and MBA set " Yi Sun
2017-09-19 11:30 ` Roger Pau Monné
2017-09-20 7:25 ` Yi Sun
2017-09-20 16:10 ` Wei Liu
2017-09-28 16:23 ` Dario Faggioli
2017-09-29 12:58 ` Wei Liu
2017-09-05 9:32 ` [PATCH v3 15/15] docs: add MBA description in docs Yi Sun
2017-09-19 11:37 ` Roger Pau Monné
2017-09-20 7:26 ` Yi Sun
2017-09-28 16:56 ` Dario Faggioli
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