On Thursday, September 7, 2023 at 03:21:12 PM CDT, Stephen Hemminger wrote: On Thu, 7 Sep 2023 19:58:35 +0000 (UTC) Don Trotter wrote: >  To clarify, the log message when my application called rte_mempool_create() to create the "node_pool", and the call succeeded. > Thanks,Don Trotter >    On Thursday, September 7, 2023 at 01:54:08 PM CDT, Don Trotter wrote:  >  >  Hi, > I have recently started using DPDK. I am working on a project on OcteonTX2 with DPDK 11.23.01. I am seeing this message from EAL during EAL init, but everything is working. >     EAL: eal_memalloc_alloc_seg_bulk(): couldn't find suitable memseg_list > The system has 96GB of memory.  These 2 pools get created and everything works fine. > mempool @0x13fed3e00  flags=10  socket_id=0  pool=0x1140300000  iova=0x13fed3e00  nb_mem_chunks=1  size=65535  populated_size=65535  header_size=128  elt_size=10200  trailer_size=40  total_obj_size=10368  private_data_size=128  ops_index=0  ops_name:   avg bytes/object=10368.558602 > mempool @0x1575d8180  flags=10  socket_id=-1  pool=0x19ffffd00  iova=0x1575d8180  nb_mem_chunks=2  size=134217727  populated_size=134217727  header_size=128  elt_size=256  trailer_size=0  total_obj_size=384  private_data_size=0  ops_index=3  ops_name:   avg bytes/object=384.000094 > You read that right. I’ve got 128*1024*1024 256 byte buffers created for data. > I also see there is still heap left, although pretty low after. > Heap id:0        Heap name:socket_0        Heap_size:55834574848,        Free_size:2403644544,        Alloc_size:53430930304,        Greatest_free_size:536870016,        Alloc_count:293,        Free_count:5, > Linux free stats. > tmp# free -h -w              total        used        free      shared     buffers       cache   availableMem:           95Gi        88Gi       6.5Gi       444Mi          0B       470Mi       599MiSwap:            0B          0B          0B > Is there anything wrong with that EAL log? Is there a lurking problem? > Thanks,Don Trotter > >  Did you setup hugepages? How many and what size? Is this a NUMA system? Also 11.23.01 seems like a weird release number. The DPDK release numbering scheme is year followed by month. I.e. 22.11 was released in November of 2022 # cat /sys/kernel/mm/hugepages/hugepages-524288kB/nr_hugepages176 Yes it is a NUMA system. You are correct sir. The SDK is SDK11.23.01 (2023-01) and DPDK is 22.11. Thanks, Don Trotter