FW: [PATCH v1] buildtools: ensure the NUMA nodes are counted correct

[Niklas Soderlund]

Hi Thomas,

Have you checked if this address the same issue you where seeing? Do you 
think we can move forward with this fix?

On 2022-08-31 10:47:24 +0200, Nole Zhang wrote:
> 
> 
> 
> > -----Original Message-----
> > From: Thomas Monjalon <thomas at monjalon.net>
> > Sent: 2022年8月29日 21:15
> > To: Nole Zhang <peng.zhang at corigine.com>; Chaoyong He 
> > <chaoyong.he at corigine.com>
> > Subject: Re: [PATCH v1] buildtools: ensure the NUMA nodes are counted 
> > correct
> > 
> > 29/08/2022 13:17, Nole Zhang:
> > > From: Thomas Monjalon <thomas at monjalon.net>
> > > > 02/08/2022 09:54, Chaoyong He:
> > > > > From: Peng Zhang <peng.zhang at corigine.com>
> > > > >
> > > > > Sorting a list of strings with the format "node[0-9]+" in order 
> > > > > to find the largest integer by looking at the last item after 
> > > > > the sort breaks. But if there are more then 10 items as a string 
> > > > > sort will sort "node10" before "node2", it will get the error NUMA nodes.
> > > >
> > > > What is the error you are seeing?
> > > >
> > > >
> > > We get the error NUMA, in this example, we get the NUMA nodes is 10, 
> > > But at fact, it has 11 NUMA.
> > 
> > Please give more details, where do you see this error?
> > We should know how to reproduce and check we have the same issue.
> > Thanks
> > 
> > Please reply with a detailed answer on the mailing list.
> > 
> In the China Phytium S2500 CPU + INSPUR server, it has 16 NUMA.
> The details are as follows:
> 
> ~#: lscpu
> 
> Architecture:        aarch64
> CPU op-mode(s):      64-bit
> Byte Order:          Little Endian
> CPU(s):              128
> On-line CPU(s) list: 0-127
> Thread(s) per core:  1
> Core(s) per socket:  64
> Socket(s):           2
> NUMA node(s):        16
> Vendor ID:           0x70
> Model:               3
> Model name:          S2500
> Stepping:            0x1
> BogoMIPS:            100.00
> L1d cache:           4 MiB
> L1i cache:           4 MiB
> L2 cache:            64 MiB
> L3 cache:            128 MiB
> NUMA node0 CPU(s):   0-7
> NUMA node1 CPU(s):   8-15
> NUMA node2 CPU(s):   16-23
> NUMA node3 CPU(s):   24-31
> NUMA node4 CPU(s):   32-39
> NUMA node5 CPU(s):   40-47
> NUMA node6 CPU(s):   48-55
> NUMA node7 CPU(s):   56-63
> NUMA node8 CPU(s):   64-71
> NUMA node9 CPU(s):   72-79
> NUMA node10 CPU(s):  80-87
> NUMA node11 CPU(s):  88-95
> NUMA node12 CPU(s):  96-103
> NUMA node13 CPU(s):  104-111
> NUMA node14 CPU(s):  112-119
> NUMA node15 CPU(s):  120-127
> Flags:               half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt lpae evtstrm
> 
> 
> I use  meson build -Dmax_lcores=detect -Dmax_numa_nodes=detect to compile, then dpdk initialization only shows 10 numa. 

-- 
Kind Regards,
Niklas Söderlund