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

Thomas Monjalon thomas at monjalon.net
Tue Apr 25 13:01:00 CEST 2017

25/04/2017 12:19, 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...

The other idea would be to properly document existing tools
and remove this one.


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