Some MSI are not routed correctly

[Maxim Sobolev]

Yes, I do. However, please note that for some reason they are not using
nearly as much CPU time as the other 4 for some reason.

   11 root          -92    -     0K  1104K WAIT    3  95.3H  28.96%
intr{irq267: igb0:que}
   11 root          -92    -     0K  1104K WAIT    1  95.5H  24.41%
intr{irq265: igb0:que}
   11 root          -92    -     0K  1104K CPU2    2  95.2H  23.73%
intr{irq266: igb0:que}
   11 root          -92    -     0K  1104K WAIT    0  95.2H  23.05%
intr{irq264: igb0:que}
   11 root          -92    -     0K  1104K WAIT    6 286:37   1.12%
intr{irq271: igb1:que}
   11 root          -92    -     0K  1104K WAIT    7 278:05   1.12%
intr{irq272: igb1:que}
   11 root          -92    -     0K  1104K WAIT    5 284:26   1.07%
intr{irq270: igb1:que}
   11 root          -92    -     0K  1104K WAIT    4 290:41   0.98%
intr{irq269: igb1:que}

CPU 0:   0.0% user,  0.0% nice,  0.9% system, 24.9% interrupt, 74.2% idle
CPU 1:   0.5% user,  0.0% nice,  0.0% system, 26.3% interrupt, 73.2% idle
CPU 2:   0.0% user,  0.0% nice,  1.4% system, 25.4% interrupt, 73.2% idle
CPU 3:   0.0% user,  0.0% nice,  0.5% system, 23.9% interrupt, 75.6% idle
CPU 4:   0.9% user,  0.0% nice,  2.3% system,  2.3% interrupt, 94.4% idle
CPU 5:   1.4% user,  0.0% nice,  4.2% system,  4.2% interrupt, 90.1% idle
CPU 6:   1.4% user,  0.0% nice,  3.8% system,  1.4% interrupt, 93.4% idle
CPU 7:   2.8% user,  0.0% nice,  0.0% system,  3.8% interrupt, 93.4% idle

34263 igb0:que 0
32308 igb0:que 1
35022 igb0:que 2
34593 igb0:que 3
14931 igb1:que 0
13059 igb1:que 1
12971 igb1:que 2
13032 igb1:que 3

So I guess interrupts are routed correctly after all, but for some reason
driver takes some 5 times less time to process it on cpus 4-7
(per-interrupt). Weird.

On Wed, Oct 21, 2015 at 10:41 AM, John Baldwin <jhb at freebsd.org> wrote:

> On Tuesday, October 20, 2015 06:31:47 PM Maxim Sobolev wrote:
> > Here you go:
> >
> > $ sudo procstat -S 11
> >   PID    TID COMM             TDNAME           CPU CSID CPU MASK
> >    11 100082 intr             irq269: igb1:que   4    1 4
> >    11 100084 intr             irq270: igb1:que   5    1 5
> >    11 100086 intr             irq271: igb1:que   6    1 6
> >    11 100088 intr             irq272: igb1:que   7    1 7
>
> These are clearly what you want, and you can see that the last CPU they
> ran on is the CPU you want as well.  If you run 'top -SHz' do you see
> the threads running on other CPUs?
>
> --
> John Baldwin
>
>


-- 
Maksym Sobolyev
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