According the advices (from previous mails) I recoded my little app to use several lcore-queue pairs to generate traffic. Thanks it's works fine, I see 8Gbps+ now with 2 workers .

But! Now I have some other situation which I cannot to resolve. 2 workers (every worker run on assigned lcore and put packets to separated tx queue) :

after start of the app - both worker works some time, but at "some moment" one worker cannot get mbufs by rte_pktmbuf_alloc_bulk() . Juts for demonstration a piece of stats:

08-01-2023 16:03:20.065 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#001] TX/NoMbufs/Flush:1981397/0/1981397

08-01-2023 16:03:20.065 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#002] TX/NoMbufs/Flush:1989108/0/1989108

Since "some moment"

08-01-2023 16:15:20.110 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#001] TX/NoMbufs/Flush:2197615/5778976181/2197631

08-01-2023 16:15:20.110 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#002] TX/NoMbufs/Flush:3952732/0/3952732

08-01-2023 16:15:30.111 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#001] TX/NoMbufs/Flush:2197615/5869388078/2197631

08-01-2023 16:15:30.111 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#002] TX/NoMbufs/Flush:3980054/0/3980054

08-01-2023 16:15:40.111 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#001] TX/NoMbufs/Flush:2197615/5959777107/2197631

08-01-2023 16:15:40.111 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#002] TX/NoMbufs/Flush:4007378/0/4007378

08-01-2023 16:15:50.112 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#001] TX/NoMbufs/Flush:2197615/6050173812/2197631

08-01-2023 16:15:50.112 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#002] TX/NoMbufs/Flush:4034699/0/4034699

08-01-2023 16:16:00.112 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#001] TX/NoMbufs/Flush:2197615/6140583818/2197631

08-01-2023 16:16:00.112 58628 [CPPROC\s_proc_auxilary:822] %TTR2CP-I: [LCore:#002] TX/NoMbufs/Flush:4062021/0/4062021

So one worker works fine and as expected, second worker - permanently don't getting mbufs .

Is there what I have to check ?

С уважением,
Ruslan R. Laishev

OpenVMS bigot, natural born system/network progger, C contractor.