From: Changbin Du <changbin.du@gmail.com>
To: corbet@lwn.net, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de
Cc: x86@kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, Changbin Du <changbin.du@gmail.com>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Subject: [PATCH v2 25/27] Documentation: x86: convert x86_64/fake-numa-for-cpusets to reST
Date: Thu, 2 May 2019 15:06:31 +0800 [thread overview]
Message-ID: <20190502070633.9809-26-changbin.du@gmail.com> (raw)
In-Reply-To: <20190502070633.9809-1-changbin.du@gmail.com>
This converts the plain text documentation to reStructuredText format and
add it to Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
...-for-cpusets => fake-numa-for-cpusets.rst} | 25 +++++++++++++------
Documentation/x86/x86_64/index.rst | 1 +
2 files changed, 19 insertions(+), 7 deletions(-)
rename Documentation/x86/x86_64/{fake-numa-for-cpusets => fake-numa-for-cpusets.rst} (85%)
diff --git a/Documentation/x86/x86_64/fake-numa-for-cpusets b/Documentation/x86/x86_64/fake-numa-for-cpusets.rst
similarity index 85%
rename from Documentation/x86/x86_64/fake-numa-for-cpusets
rename to Documentation/x86/x86_64/fake-numa-for-cpusets.rst
index 4b09f18831f8..74fbb78b3c67 100644
--- a/Documentation/x86/x86_64/fake-numa-for-cpusets
+++ b/Documentation/x86/x86_64/fake-numa-for-cpusets.rst
@@ -1,5 +1,12 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=====================
+Fake NUMA For CPUSets
+=====================
+
+:Author: David Rientjes <rientjes@cs.washington.edu>
+
Using numa=fake and CPUSets for Resource Management
-Written by David Rientjes <rientjes@cs.washington.edu>
This document describes how the numa=fake x86_64 command-line option can be used
in conjunction with cpusets for coarse memory management. Using this feature,
@@ -20,7 +27,7 @@ you become more familiar with using this combination for resource control,
you'll determine a better setup to minimize the number of nodes you have to deal
with.
-A machine may be split as follows with "numa=fake=4*512," as reported by dmesg:
+A machine may be split as follows with "numa=fake=4*512," as reported by dmesg::
Faking node 0 at 0000000000000000-0000000020000000 (512MB)
Faking node 1 at 0000000020000000-0000000040000000 (512MB)
@@ -34,7 +41,7 @@ A machine may be split as follows with "numa=fake=4*512," as reported by dmesg:
Now following the instructions for mounting the cpusets filesystem from
Documentation/cgroup-v1/cpusets.txt, you can assign fake nodes (i.e. contiguous memory
-address spaces) to individual cpusets:
+address spaces) to individual cpusets::
[root@xroads /]# mkdir exampleset
[root@xroads /]# mount -t cpuset none exampleset
@@ -47,7 +54,7 @@ Now this cpuset, 'ddset', will only allowed access to fake nodes 0 and 1 for
memory allocations (1G).
You can now assign tasks to these cpusets to limit the memory resources
-available to them according to the fake nodes assigned as mems:
+available to them according to the fake nodes assigned as mems::
[root@xroads /exampleset/ddset]# echo $$ > tasks
[root@xroads /exampleset/ddset]# dd if=/dev/zero of=tmp bs=1024 count=1G
@@ -57,9 +64,13 @@ Notice the difference between the system memory usage as reported by
/proc/meminfo between the restricted cpuset case above and the unrestricted
case (i.e. running the same 'dd' command without assigning it to a fake NUMA
cpuset):
- Unrestricted Restricted
- MemTotal: 3091900 kB 3091900 kB
- MemFree: 42113 kB 1513236 kB
+
+ ======== ============ ==========
+ Name Unrestricted Restricted
+ ======== ============ ==========
+ MemTotal 3091900 kB 3091900 kB
+ MemFree 42113 kB 1513236 kB
+ ======== ============ ==========
This allows for coarse memory management for the tasks you assign to particular
cpusets. Since cpusets can form a hierarchy, you can create some pretty
diff --git a/Documentation/x86/x86_64/index.rst b/Documentation/x86/x86_64/index.rst
index 7b8c82151358..e2a324cde671 100644
--- a/Documentation/x86/x86_64/index.rst
+++ b/Documentation/x86/x86_64/index.rst
@@ -11,3 +11,4 @@ x86_64 Support
uefi
mm
5level-paging
+ fake-numa-for-cpusets
--
2.20.1
next prev parent reply other threads:[~2019-05-02 7:12 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-02 7:06 [PATCH v2 00/27] Include linux x86 docs into Sphinx TOC tree Changbin Du
2019-05-02 7:06 ` [PATCH v2 01/27] Documentation: add Linux x86 docs to " Changbin Du
2019-05-02 7:06 ` [PATCH v2 02/27] Documentation: x86: convert boot.txt to reST Changbin Du
2019-05-02 7:06 ` [PATCH v2 03/27] Documentation: x86: convert topology.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 04/27] Documentation: x86: convert exception-tables.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 05/27] Documentation: x86: convert kernel-stacks " Changbin Du
2019-05-02 7:06 ` [PATCH v2 06/27] Documentation: x86: convert entry_64.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 07/27] Documentation: x86: convert earlyprintk.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 08/27] Documentation: x86: convert zero-page.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 09/27] Documentation: x86: convert tlb.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 10/27] Documentation: x86: convert mtrr.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 11/27] Documentation: x86: convert pat.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 12/27] Documentation: x86: convert protection-keys.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 13/27] Documentation: x86: convert intel_mpx.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 14/27] Documentation: x86: convert amd-memory-encryption.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 15/27] Documentation: x86: convert pti.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 16/27] Documentation: x86: convert microcode.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 17/27] Documentation: x86: convert resctrl_ui.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 18/27] Documentation: x86: convert orc-unwinder.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 19/27] Documentation: x86: convert usb-legacy-support.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 20/27] Documentation: x86: convert i386/IO-APIC.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 21/27] Documentation: x86: convert x86_64/boot-options.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 22/27] Documentation: x86: convert x86_64/uefi.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 23/27] Documentation: x86: convert x86_64/mm.txt " Changbin Du
2019-05-02 7:06 ` [PATCH v2 24/27] Documentation: x86: convert x86_64/5level-paging.txt " Changbin Du
2019-05-02 7:06 ` Changbin Du [this message]
2019-05-02 7:06 ` [PATCH v2 26/27] Documentation: x86: convert x86_64/cpu-hotplug-spec " Changbin Du
2019-05-02 7:06 ` [PATCH v2 27/27] Documentation: x86: convert x86_64/machinecheck " Changbin Du
2019-05-03 12:43 ` [PATCH v2 00/27] Include linux x86 docs into Sphinx TOC tree Jonathan Corbet
2019-05-03 13:09 ` Borislav Petkov
2019-05-03 17:44 ` Ingo Molnar
2019-05-05 19:02 ` Jonathan Corbet
2019-05-06 0:06 ` Changbin Du
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=20190502070633.9809-26-changbin.du@gmail.com \
--to=changbin.du@gmail.com \
--cc=bp@alien8.de \
--cc=corbet@lwn.net \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mchehab+samsung@kernel.org \
--cc=mingo@redhat.com \
--cc=tglx@linutronix.de \
--cc=x86@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).