On Thursday, September 7, 2023 at 03:21:12 PM CDT, Stephen Hemminger <[email protected]> wrote:
On Thu, 7 Sep 2023 19:58:35 +0000 (UTC) Don Trotter <[email protected]> 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 ><[email protected]> 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 <mbuf_pool>@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: <cn9k_mempool_ops> avg > bytes/object=10368.558602 > mempool <node_pool>@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: <ring_mp_mc> 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
