[dpdk-dev] [PATCH] usertools: use /sys/devices/system/cpu for CPU layout script

[Andriy Berestovskyy]

Hi,

On 25.04.2017 10:48, Thomas Monjalon wrote:
> Do you think it is really a good idea to keep and maintain this script
> in DPDK? It was intentionnally not exported in "make install".
> I think it is a bit out of scope, and I wonder which alternatives
> do we have? I know hwloc/lstopo, but there are probably others.

hwloc does not work on my target, but you are right, there are a variety 
of tools for that. For example, I prefer numactl (option -H) because it 
also allows to do many useful things, like bind CPUs to one node and 
memory allocations to another.

At the moment the script is just like the lscpu, which is preinstalled 
on Ubuntu and mentioned in the documentation alongside with the cpu_layout.

We could try to make the script more useful, for example, show which NIC 
is on which NUMA node. Still, it will be just a subset of functionality 
of tools like hwloc...


Regards,
Andriy