[REGRESSION] Fresh CURRENT consume much more CPU on network traffic (vlans + routing + ipfw with NAT)

[Lev Serebryakov]

On 13.07.2018 14:10, Lev Serebryakov wrote:

>  when system is unresponsive I see this in `top -SH`
> 
> 100083 root -76 - 0K   272K -       1 291.8H  95.31% kernel{if_io_tqg_1}
> 100082 root -76 - 0K   272K -       0 297.7H  95.20% kernel{if_io_tqg_0}
> 
>  And it is new to me.
 Oh, this MoBo has (and uses) two em0 adapters:

em0 at pci0:2:0:0: class=0x020000 card=0x202c8086 chip=0x10d38086 rev=0x00
hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82574L Gigabit Network Connection'
    class      = network
    subclass   = ethernet
em1 at pci0:1:0:0: class=0x020000 card=0x202c8086 chip=0x10d38086 rev=0x00
hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82574L Gigabit Network Connection'
    class      = network
    subclass   = ethernet

-- 
// Lev Serebryakov

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