From: Chao Zhu <chaozhu@linux.vnet.ibm.com>
To: dev@dpdk.org
Cc: Gowrishankar <gowrishankar.m@linux.vnet.ibm.com>,
sergio.gonzalez.monroy@intel.com, david.marchand@6wind.com
Subject: [dpdk-dev] [PATCH 2/2] doc/guides: Add hugepage reserve instructions for IBM POWER
Date: Thu, 6 Apr 2017 15:36:10 +0530 [thread overview]
Message-ID: <1491473170-25160-3-git-send-email-chaozhu@linux.vnet.ibm.com> (raw)
In-Reply-To: <1491473170-25160-1-git-send-email-chaozhu@linux.vnet.ibm.com>
This patch adds additional instructions for hugepage reservation on IBM
POWER.
Signed-off-by: Chao Zhu <chaozhu@linux.vnet.ibm.com>
---
doc/guides/linux_gsg/sys_reqs.rst | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/doc/guides/linux_gsg/sys_reqs.rst b/doc/guides/linux_gsg/sys_reqs.rst
index 61222c6..3a28c9e 100644
--- a/doc/guides/linux_gsg/sys_reqs.rst
+++ b/doc/guides/linux_gsg/sys_reqs.rst
@@ -200,6 +200,12 @@ On a NUMA machine, pages should be allocated explicitly on separate nodes::
For 1G pages, it is not possible to reserve the hugepage memory after the system has booted.
+ On IBM POWER system, the nr_overcommit_hugepages should be set to the same value as nr_hugepages.
+ For example, if the required page number is 128, the following commands are used::
+
+ echo 128 > /sys/kernel/mm/hugepages/hugepages-16384kB/nr_hugepages
+ echo 128 > /sys/kernel/mm/hugepages/hugepages-16384kB/nr_overcommit_hugepages
+
Using Hugepages with the DPDK
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
--
1.8.3.1
next prev parent reply other threads:[~2017-04-06 10:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-06 10:06 [dpdk-dev] [PATCH 0/2] ppc:Fix the memory initialization " Chao Zhu
2017-04-06 10:06 ` [dpdk-dev] [PATCH 1/2] eal/ppc: fix mmap for memory initialization Chao Zhu
2017-04-06 12:58 ` Sergio Gonzalez Monroy
2017-04-13 1:40 ` Chao Zhu
2017-04-13 8:14 ` Sergio Gonzalez Monroy
2017-04-20 7:41 ` Thomas Monjalon
2017-04-20 7:39 ` Thomas Monjalon
2017-04-06 10:06 ` Chao Zhu [this message]
2017-04-06 16:16 ` [dpdk-dev] [PATCH 2/2] doc/guides: Add hugepage reserve instructions for IBM POWER Mcnamara, John
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