From: Will Huck <will.huckk@gmail.com>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"jiang.liu@huawei.com" <jiang.liu@huawei.com>,
"wujianguo@huawei.com" <wujianguo@huawei.com>,
"hpa@zytor.com" <hpa@zytor.com>,
"wency@cn.fujitsu.com" <wency@cn.fujitsu.com>,
"laijs@cn.fujitsu.com" <laijs@cn.fujitsu.com>,
"linfeng@cn.fujitsu.com" <linfeng@cn.fujitsu.com>,
"yinghai@kernel.org" <yinghai@kernel.org>,
"isimatu.yasuaki@jp.fujitsu.com" <isimatu.yasuaki@jp.fujitsu.com>,
"rob@landley.net" <rob@landley.net>,
"kosaki.motohiro@jp.fujitsu.com" <kosaki.motohiro@jp.fujitsu.com>,
"minchan.kim@gmail.com" <minchan.kim@gmail.com>,
"mgorman@suse.de" <mgorman@suse.de>,
"rientjes@google.com" <rientjes@google.com>,
"guz.fnst@cn.fujitsu.com" <guz.fnst@cn.fujitsu.com>,
"rusty@rustcorp.com.au" <rusty@rustcorp.com.au>,
"lliubbo@gmail.com" <lliubbo@gmail.com>,
"jaegeuk.hanse@gmail.com" <jaegeuk.hanse@gmail.com>,
"glommer@parallels.com" <glommer@parallels.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [Bug fix PATCH 1/2] acpi, movablemem_map: Exclude memblock.reserved ranges when parsing SRAT.
Date: Mon, 25 Feb 2013 09:35:51 +0800 [thread overview]
Message-ID: <512ABFF7.9090207@gmail.com> (raw)
In-Reply-To: <3908561D78D1C84285E8C5FCA982C28F1E06B55D@ORSMSX108.amr.corp.intel.com>
On 02/21/2013 06:41 AM, Luck, Tony wrote:
>> What's the relationship between e820 map and SRAT?
> The e820 map (or EFI memory map on some recent systems) provides
> a list of memory ranges together with usage information (e.g. reserved
> for BIOS, or available) and attributes (WB cacheable, uncacheable).
>
> The SRAT table provides topology information for address ranges. It
> tells the OS which memory is close to each cpu, and which is more
> distant. If there are multiple degrees of "distant" then the SLIT table
> provides a matrix of relative latencies between nodes.
What's the meaning of multiple degrees of "distant" here? Eg, there are
ten nodes, can SRAT tell each node which memory on other node is more
close or distant? If the answer is yes, why need SLIT since processes
can use memory close to their nodes.
SRAT and SLIT are get from firmware or UEFI?
>
> -Tony
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2013-02-25 1:36 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-20 11:00 [Bug fix PATCH 0/2] Make whatever node kernel resides in un-hotpluggable Tang Chen
2013-02-20 11:00 ` [Bug fix PATCH 1/2] acpi, movablemem_map: Exclude memblock.reserved ranges when parsing SRAT Tang Chen
2013-02-20 12:31 ` Tang Chen
2013-02-20 12:35 ` Will Huck
2013-02-20 22:41 ` Luck, Tony
2013-02-21 0:05 ` Will Huck
2013-02-21 0:23 ` Luck, Tony
2013-02-25 7:07 ` Will Huck
2013-02-25 9:01 ` Will Huck
2013-02-25 1:35 ` Will Huck [this message]
2013-02-25 3:32 ` Tang Chen
2013-02-25 19:06 ` Luck, Tony
2013-02-20 11:00 ` [Bug fix PATCH 2/2] acpi, movablemem_map: Make whatever nodes the kernel resides in un-hotpluggable Tang Chen
2013-02-23 19:26 ` Rob Landley
2013-02-25 2:54 ` Tang Chen
2013-02-20 21:36 ` [Bug fix PATCH 0/2] Make whatever node " Andrew Morton
2013-02-21 3:03 ` Tang Chen
2013-02-21 7:03 ` Tang Chen
2013-02-23 19:40 ` Rob Landley
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=512ABFF7.9090207@gmail.com \
--to=will.huckk@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=glommer@parallels.com \
--cc=guz.fnst@cn.fujitsu.com \
--cc=hpa@zytor.com \
--cc=isimatu.yasuaki@jp.fujitsu.com \
--cc=jaegeuk.hanse@gmail.com \
--cc=jiang.liu@huawei.com \
--cc=kosaki.motohiro@jp.fujitsu.com \
--cc=laijs@cn.fujitsu.com \
--cc=linfeng@cn.fujitsu.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=lliubbo@gmail.com \
--cc=mgorman@suse.de \
--cc=minchan.kim@gmail.com \
--cc=rientjes@google.com \
--cc=rob@landley.net \
--cc=rusty@rustcorp.com.au \
--cc=tangchen@cn.fujitsu.com \
--cc=tony.luck@intel.com \
--cc=wency@cn.fujitsu.com \
--cc=wujianguo@huawei.com \
--cc=yinghai@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).