Date: Wed, 21 Oct 2015 11:29:17 -0700 From: Maxim Sobolev <sobomax@sippysoft.com> To: John Baldwin <jhb@freebsd.org> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: Some MSI are not routed correctly Message-ID: <CAH7qZfvMZ%2BqChejXZtjNDofehCkDCv7cu8a2Q3PqYUX0Rer3dw@mail.gmail.com> In-Reply-To: <2050066.YiOUntKNB6@ralph.baldwin.cx> References: <CAH7qZfscsmvU6E5d-VXqN_xz_Bjs7i6K0izd%2Bv8X2nm6Q9s7Aw@mail.gmail.com> <1608354.LQmTMSsd5C@ralph.baldwin.cx> <CAH7qZfsU2hOcsfh-a9k1WrNZ6MdfhSvP40hKWs4ZnRo9TnC=zQ@mail.gmail.com> <2050066.YiOUntKNB6@ralph.baldwin.cx>
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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@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
Sippy Software, Inc.
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