linux-kernel - Re: [PATCHv4 00/13] Heterogeneuos memory node attributes

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Message-ID: <20190118131611.GG26056@350D>
Date:   Sat, 19 Jan 2019 00:16:11 +1100
From:   Balbir Singh <bsingharora@...il.com>
To:     Keith Busch <keith.busch@...el.com>
Cc:     linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-mm@...ck.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rafael Wysocki <rafael@...nel.org>,
        Dave Hansen <dave.hansen@...el.com>,
        Dan Williams <dan.j.williams@...el.com>
Subject: Re: [PATCHv4 00/13] Heterogeneuos memory node attributes

On Thu, Jan 17, 2019 at 08:44:37AM -0700, Keith Busch wrote:
> On Thu, Jan 17, 2019 at 11:58:21PM +1100, Balbir Singh wrote:
> > On Wed, Jan 16, 2019 at 10:57:51AM -0700, Keith Busch wrote:
> > > It had previously been difficult to describe these setups as memory
> > > rangers were generally lumped into the NUMA node of the CPUs. New
> > > platform attributes have been created and in use today that describe
> > > the more complex memory hierarchies that can be created.
> > > 
> > 
> > Could you please expand on this text -- how are these attributes
> > exposed/consumed by both the kernel and user space?
> > 
> > > This series' objective is to provide the attributes from such systems
> > > that are useful for applications to know about, and readily usable with
> > > existing tools and libraries.
> > 
> > I presume these tools and libraries are numactl and mbind()?
> 
> Yes, and numactl is used the examples provided in both changelogs and
> documentation in this series. Do you want to see those in the cover
> letter as well?

Not really, I was just reading through the cover letter and was curious

Balbir Singh.