doc: improve lstopo tip

The tool lstopo from hwloc package can provide a graphical
or textual view.
In its textual form, the option --merge gives a shorter summary
which fits well with the DPDK need.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>

diff --git a/doc/guides/linux_gsg/build_sample_apps.rst b/doc/guides/linux_gsg/build_sample_apps.rst
index 7865254..709b301 100644 (file)
--- a/doc/guides/linux_gsg/build_sample_apps.rst
+++ b/doc/guides/linux_gsg/build_sample_apps.rst
@@ -138,11 +138,16 @@ This can be useful when using other processors to understand the mapping of the
 
 .. note::
 
-    A more graphical view of the logical core layout may be obtained using the ``lstopo`` Linux utility.
-    On Fedora Linux, this may be installed and run using the following command::
+   A more graphical view of the logical core layout
+   may be obtained using the ``lstopo`` Linux utility.
+   On Fedora, this may be installed and run using the following commands::
 
-        sudo yum install hwloc
-        ./lstopo
+      sudo yum install hwloc
+      lstopo
+
+   This command produces a quite short textual output::
+
+      lstopo-no-graphics --merge
 
 .. warning::
 

diff --git a/doc/guides/nics/mlx4.rst b/doc/guides/nics/mlx4.rst
index 9742ddb..a25add7 100644 (file)
--- a/doc/guides/nics/mlx4.rst
+++ b/doc/guides/nics/mlx4.rst
@@ -308,7 +308,7 @@ Performance tuning
    for better performance. For VMs, verify that the right CPU
    and NUMA node are pinned according to the above. Run::
 
-        lstopo-no-graphics
+        lstopo-no-graphics --merge
 
    to identify the NUMA node to which the PCIe adapter is connected.
 

diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index 220c6e5..8329964 100644 (file)
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -1496,7 +1496,7 @@ Performance tuning
    for better performance. For VMs, verify that the right CPU
    and NUMA node are pinned according to the above. Run::
 
-        lstopo-no-graphics
+        lstopo-no-graphics --merge
 
    to identify the NUMA node to which the PCIe adapter is connected.