Re: [REGRESSION] Fresh CURRENT consume much more CPU on network traffic (vlans + routing + ipfw with NAT)
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@pci0:2:0:0: class=0x02 card=0x202c8086 chip=0x10d38086 rev=0x00
hdr=0x00
vendor = 'Intel Corporation'
device = '82574L Gigabit Network Connection'
class = network
subclass = ethernet
em1@pci0:1:0:0: class=0x02 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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[REGRESSION] Fresh CURRENT consume much more CPU on network traffic (vlans + routing + ipfw with NAT)
I have "SOHO" router on Atom D2500 with FreeBSD CURRENT. It runs
CURRENT for very long time (from 11-CURRENT times), and recently it
start to consume much more CPU on same traffic — to the point when it
becomes unresponsive in shell (via ssh, not local console).
I have rather complex ipfw ruleset, but this ruleset is the same for
many years.
Revisions before r333989 worked normally, I never seen any problem with
shell, no matter how much traffic is processed
Revision r334649 with same configuration, same firewall ruleset, etc.,
becomes completely unresponsive under network load (pure transit traffic).
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.
--
// Lev Serebryakov
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