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>
This commit is contained in:
Thomas Monjalon 2021-03-08 23:25:52 +01:00
parent 520e2b67e9
commit 4821fa1099
3 changed files with 11 additions and 6 deletions

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@ -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::

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@ -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.

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@ -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.