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

[Thomas Monjalon <thomas@monjalon.net>]

Hi,

20/09/2022 12:11, 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?

Yes. No need to show lscpu output,
but the output of the DPDK initialization would be more interesting.


> On 2022-08-31 10:47:24 +0200, Nole Zhang wrote:
> > 
> > 
> > 
> > > -----Original Message-----
> > > From: Thomas Monjalon <thomas@monjalon.net>
> > > Sent: 2022年8月29日 21:15
> > > To: Nole Zhang <peng.zhang@corigine.com>; Chaoyong He 
> > > <chaoyong.he@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@monjalon.net>
> > > > > 02/08/2022 09:54, Chaoyong He:
> > > > > > From: Peng Zhang <peng.zhang@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. 
> 
>