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Re: CPU "em0 taskq"



: "DEVICE_POLLING" ?

21 2009 . 12:18 <kirillrst@xxxxxxxxx> :
net.isr.direct=0, :

PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND
11 root 1 171 ki31 0K 8K RUN 496:20 19.68% idle: cpu0
12 root 1 -44 - 0K 8K WAIT 0:40 19.09% swi1: net
22 root 1 -68 - 0K 8K - 225:30 8.98% em0 taskq
34 root 1 -68 - 0K 8K WAIT 81:59 8.69% irq18: em0 atapci1
17308 www 1 96 0 118M 106M RUN 1:02 1.27% nginx


21 2009 . 12:14 <kirillrst@xxxxxxxxx> :

# vmstat -i
interrupt total rate
irq4: sio0 3 0
irq17: fxp0 1 0
irq18: em0 atapci1 380860601 5127
cpu0: timer 148559877 1999
Total 529420482 7126

2009/10/21 Igor Sysoev <is@xxxxxxxxxxxxx>

On Wed, Oct 21, 2009 at 10:56:12AM +0400, wrote:

> , . ,
> (*em0 taskq*) .
> FreeBSD 100.
> : Celeron 2.8, 1Gb , 7.2-i386-20091008-RELENG_7_2.
> web-, nginx .
>
> /etc/rc.d/ipfilter onestop - .
>
> # top -SP
> CPU: 13.5% user, 0.0% nice, 46.8% system, 6.4% interrupt, 33.3% idle
> Mem: 205M Active, 266M Inact, 152M Wired, 1068K Cache, 111M Buf, 368M Free
> Swap: 4096M Total, 56M Used, 4040M Free, 1% Inuse
>
> PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND
> 11 root 1 171 ki31 0K 8K RUN 476:04 30.76% idle:
> cpu0
> 22 root 1 -68 - 0K 8K - 204:36 *29.20% em0
> taskq*
> 34 root 1 -68 - 0K 8K WAIT 73:52 8.40% irq18:
> em0 atapci1
> 15763 www 1 96 0 203M 191M RUN 3:35 1.17% nginx
> ...

> # netstat -dw1
> input (Total) output
> packets errs bytes packets errs bytes colls drops
> 8448 0 4671078 9177 0 6720956 0 0
> 25776 0 17436726 28118 0 17904026 0 0
> 32230 0 26810636 32266 0 21383868 0 0
> 23703 0 19727356 23627 0 13323592 0 0

, , .
, TCP/IP,
net.isr.direct=0, net.inet.ip.intr_queue_maxlen=2048.
top' "swi1: net",
TCP/IP. "irq18: em0 atapci1",
"vmstat -i" ? BIOS' em atapci
( ).


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