On 2/11/2021 6:16 PM, Thomas Monjalon wrote:
The tool dpdk-hugepages.py, added in DPDK 20.11,
is referenced in the guides instead of more complicate commands.

The original Linux commands are kept in linux_gsg/sys_reqs.rst
and nics/build_and_test.rst.

Suggested-by: Stephen Hemminger <step...@networkplumber.org>
Signed-off-by: Thomas Monjalon <tho...@monjalon.net>
---
  doc/guides/cryptodevs/octeontx.rst        | 4 +---
  doc/guides/cryptodevs/octeontx2.rst       | 2 +-
  doc/guides/howto/lm_bond_virtio_sriov.rst | 6 +++---
  doc/guides/howto/lm_virtio_vhost_user.rst | 6 +++---
  doc/guides/linux_gsg/sys_reqs.rst         | 2 ++
  doc/guides/nics/build_and_test.rst        | 6 ++++++
  doc/guides/nics/mlx4.rst                  | 2 +-
  doc/guides/nics/mlx5.rst                  | 2 +-
  doc/guides/nics/virtio.rst                | 2 +-
  doc/guides/sample_app_ug/vhost.rst        | 2 +-
  10 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/doc/guides/cryptodevs/octeontx.rst 
b/doc/guides/cryptodevs/octeontx.rst
index d813cb2974..a39f3f3d02 100644
--- a/doc/guides/cryptodevs/octeontx.rst
+++ b/doc/guides/cryptodevs/octeontx.rst
@@ -107,9 +107,7 @@ applications.
.. code-block:: console - echo 8 > /sys/kernel/mm/hugepages/hugepages-524288kB/nr_hugepages
-        mkdir /mnt/huge
-        mount -t hugetlbfs nodev /mnt/huge
+   dpdk-hugepages.py --setup 4G --pagesize 512M
Example applications can now be executed with crypto operations offloaded to
  OCTEON TX crypto PMD.
diff --git a/doc/guides/cryptodevs/octeontx2.rst 
b/doc/guides/cryptodevs/octeontx2.rst
index a648a33cbc..d312eeb74c 100644
--- a/doc/guides/cryptodevs/octeontx2.rst
+++ b/doc/guides/cryptodevs/octeontx2.rst
@@ -123,7 +123,7 @@ Another way to bind the VF would be to use the 
``dpdk-devbind.py`` script:
* Ensure that sufficient huge pages are available for your application:: - echo 8 > /sys/kernel/mm/hugepages/hugepages-524288kB/nr_hugepages
+         dpdk-hugepages.py --setup 4G --pagesize 512M
Refer to :ref:`linux_gsg_hugepages` for more details. diff --git a/doc/guides/howto/lm_bond_virtio_sriov.rst b/doc/guides/howto/lm_bond_virtio_sriov.rst
index 16d86d122c..3e25480316 100644
--- a/doc/guides/howto/lm_bond_virtio_sriov.rst
+++ b/doc/guides/howto/lm_bond_virtio_sriov.rst
@@ -581,9 +581,9 @@ Set up DPDK in the Virtual Machine
     # virtio port is 03
     # vf port is 04
- cat /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
-   echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
-   cat  /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
+   /root/dpdk/usertools/dpdk-hugepages.py --show
+   /root/dpdk/usertools/dpdk-hugepages.py --setup 2G
+   /root/dpdk/usertools/dpdk-hugepages.py --show

Wouldn't be better to use 'dpdk-hugepages.py' only, or perhaps './usertools/dpdk-hugepages.py' but not full path.
The dpdk path, '/root/dpdk/', assumption can be missleading.


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