New upstream version 18.11-rc4

[deb_dpdk.git] / doc / guides / linux_gsg / sys_reqs.rst

diff --git a/doc/guides/linux_gsg/sys_reqs.rst b/doc/guides/linux_gsg/sys_reqs.rst
index e2230f3..29c5f47 100644 (file)
--- a/doc/guides/linux_gsg/sys_reqs.rst
+++ b/doc/guides/linux_gsg/sys_reqs.rst
@@ -64,7 +64,11 @@ Compilation of the DPDK
        x86_x32 ABI is currently supported with distribution packages only on Ubuntu
        higher than 13.10 or recent Debian distribution. The only supported  compiler is gcc 4.9+.
 
        x86_x32 ABI is currently supported with distribution packages only on Ubuntu
        higher than 13.10 or recent Debian distribution. The only supported  compiler is gcc 4.9+.
 

-*   libnuma-devel - library for handling NUMA (Non Uniform Memory Access).
+*   Library for handling NUMA (Non Uniform Memory Access).
+
+    * numactl-devel in Red Hat/Fedora;
+
+    * libnuma-dev in Debian/Ubuntu;

 
 *   Python, version 2.7+ or 3.2+, to use various helper scripts included in the DPDK package.
 
 
 *   Python, version 2.7+ or 3.2+, to use various helper scripts included in the DPDK package.
 


@@ -103,6 +107,13 @@ System Software
 
         uname -r
 
 
         uname -r
 

+.. note::
+
+    Kernel version 3.2 is no longer a kernel.org longterm stable kernel.
+    For DPDK 19.02 the minimum required kernel will be updated to
+    the current kernel.org oldest longterm stable supported kernel 3.16,
+    or recent versions of common distributions, notably RHEL/CentOS 7.
+

 *   glibc >= 2.7 (for features related to cpuset)
 
     The version can be checked using the ``ldd --version`` command.
 *   glibc >= 2.7 (for features related to cpuset)
 
     The version can be checked using the ``ldd --version`` command.


@@ -183,12 +194,6 @@ 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.
 
 
     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
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Using Hugepages with the DPDK
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^