Hi all, I am developing a DPDK program using a Mellanox ConnectX-5 100G. My program starts N workers (one per core), and each worker deals with its own dedicated TX and RX queue, therefore I need to setup N TX and N RX queues.
For each RX queue I create a mbuf pool with: n = 262144 cache size = 512 priv_size = 0 data_room_size = RTE_MBUF_DEFAULT_BUF_SIZE For N<=4 everything works fine, but with N=8, 'rte_eth_dev_start' returns: "Unknown error -12" and the following error: net_mlx5: port 0 Tx queue 0 QP creation failure net_mlx5: port 0 Tx queue allocation failed: Cannot allocate memory I tried - to increment the number of Hugepages (up to 64x1G) - change the pool size in different ways - both dpdk 18.05 and 18.11 but with no success. Do you have any suggestions on what could be the issue? Thanks for your help, --- Amedeo