svn commit: r304436 - in head: . sys/netinet

[Slawa Olhovchenkov]

On Sun, Aug 28, 2016 at 10:20:08AM -0700, Adrian Chadd wrote:

> Then the rest of the big entries are just a combination of rtentry
> locking, tcp timer locking, zfs locking and madvise locking. There's
> some sowakeup locking there as well, from the socket producer/consumer
> locking.

On some high network speed I am see like kevent's congestion:

22.79%  [89522]    __mtx_lock_sleep @ /boot/kernel.VSTREAM/kernel
 82.99%  [74295]     knote
  99.97%  [74269]      sowakeup
   99.07%  [73581]       tcp_do_segment
    100.0%  [73581]        tcp_input
     100.0%  [73581]         ip_input
      100.0%  [73581]          netisr_dispatch_src
       100.0%  [73581]           ether_demux
        100.0%  [73581]            ether_nh_input
         100.0%  [73581]             netisr_dispatch_src
          68.88%  [50683]              t4_eth_rx @ /boot/kernel.VSTREAM/if_cxgbe.ko
           100.0%  [50683]               service_iq
            100.0%  [50683]                t4_intr
             100.0%  [50683]                 intr_event_execute_handlers @ /boot/kernel.VSTREAM/kernel
              100.0%  [50683]                  ithread_loop
               100.0%  [50683]                   fork_exit
          31.12%  [22898]              tcp_lro_flush
           97.30%  [22280]               service_iq @ /boot/kernel.VSTREAM/if_cxgbe.ko
            100.0%  [22280]                t4_intr
             100.0%  [22280]                 intr_event_execute_handlers @ /boot/kernel.VSTREAM/kernel
              100.0%  [22280]                  ithread_loop
               100.0%  [22280]                   fork_exit
           01.55%  [354]                 tcp_lro_flush_inactive
            100.0%  [354]                  service_iq @ /boot/kernel.VSTREAM/if_cxgbe.ko
             100.0%  [354]                   t4_intr
              100.0%  [354]                    intr_event_execute_handlers @ /boot/kernel.VSTREAM/kernel
               100.0%  [354]                     ithread_loop
           01.15%  [264]                 tcp_lro_rx
            100.0%  [264]                  t4_eth_rx @ /boot/kernel.VSTREAM/if_cxgbe.ko
             100.0%  [264]                   service_iq
              100.0%  [264]                    t4_intr
               100.0%  [264]                     intr_event_execute_handlers @ /boot/kernel.VSTREAM/kernel

Can I do some recomendation?