Test-Label: intel-Functional Test-Status: SUCCESS _Functional PASS_ DPDK git repo: dpdk commit 64f27886b8bf127cd365a8a3ed5c05852a5ae81d Author: David Marchand Date: Sat Nov 2 10:38:16 2024 +0100 eal/unix: optimize thread creation Setting the cpu affinity of the child thread from the parent thread is racy when using pthread_setaffinity_np, as the child thread may start running and initialize before affinity is set. On the other hand, setting the cpu affinity from the child thread itself may fail, so the parent thread waits for the child thread to report whether this call succeeded. This synchronisation point resulted in a significant slow down of rte_thread_create() (as seen in the lcores_autotest unit tests, in OBS for some ARM systems). Another option for setting cpu affinity is to use the not portable pthread_attr_setaffinity_np available in FreeBSD and glibc, but not available in musl. Fixes: b28c6196b132 ("eal/unix: fix thread creation") Cc: stable@dpdk.org Signed-off-by: David Marchand Acked-by: Luca Boccassi Acked-by: Stephen Hemminger Acked-by: Chengwen Feng Smoke-Testing Summary : 31 Case Done, 31 Successful, 0 Failures OS : Ubuntu 22.04.2 LTS Kernel : 5.15.0-60-generic GCC : 11.3.0-1ubuntu1~22.04 NIC : Ethernet Controller XL710 for 40GbE QSFP+ Target : x86_64-native-linuxapp-gcc Test result details: +-----------------+---------------------------------------------------+-------+ | suite | case | status| +-----------------+---------------------------------------------------+-------+ | checksum_offload| test_checksum_offload_with_vlan | passed| | checksum_offload| test_do_not_insert_checksum_on_the_transmit_packet| passed| | checksum_offload| test_hardware_checksum_check_ip_rx | passed| | checksum_offload| test_hardware_checksum_check_ip_tx | passed| | checksum_offload| test_hardware_checksum_check_l4_rx | passed| | checksum_offload| test_hardware_checksum_check_l4_tx | passed| | checksum_offload| test_insert_checksum_on_the_transmit_packet | passed| | checksum_offload| test_rx_checksum_valid_flags | passed| | dual_vlan | test_dual_vlan_priority_rxtx | passed| | dual_vlan | test_vlan_filter_config | passed| | dual_vlan | test_vlan_filter_table | passed| | dual_vlan | test_vlan_insert_config | passed| | dual_vlan | test_vlan_random_test | passed| | dual_vlan | test_vlan_strip_config | passed| | dual_vlan | test_vlan_synthetic_test | passed| | dual_vlan | test_vlan_tpid_config | passed| | dual_vlan | test_vlan_stripq_config | n/a | | jumboframes | test_jumboframes_bigger_jumbo | passed| | jumboframes | test_jumboframes_jumbo_jumbo | passed| | jumboframes | test_jumboframes_jumbo_nojumbo | passed| | jumboframes | test_jumboframes_normal_jumbo | passed| | jumboframes | test_jumboframes_normal_nojumbo | passed| | rxtx_offload | test_rxoffload_port_all | passed| | rxtx_offload | test_rxoffload_port_cmdline | passed| | rxtx_offload | test_txoffload_port | passed| | rxtx_offload | test_txoffload_port_all | passed| | rxtx_offload | test_txoffload_port_checksum | passed| | rxtx_offload | test_txoffload_port_cmdline | passed| | rxtx_offload | test_txoffload_port_multi_segs | passed| | rxtx_offload | test_txoffload_queue | passed| | rxtx_offload | test_rxoffload_queue | n/a | +-----------------+---------------------------------------------------+-------+ DPDK STV team