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Date:      Fri, 09 Jan 2015 11:03:48 +0100
From:      Harald Schmalzbauer <h.schmalzbauer@omnilan.de>
To:        FreeBSD Stable <freebsd-stable@freebsd.org>
Subject:   Re: igb(4) watchdog timeout, lagg(4) fails
Message-ID:  <54AFA784.6020102@omnilan.de>
In-Reply-To: <54AE5A6B.7040601@omnilan.de>
References:  <54ACC6A2.1050400@omnilan.de> <54AE565D.50208@omnilan.de> <54AE5A6B.7040601@omnilan.de>

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[-- Attachment #1 --]
 Bezüglich Harald Schmalzbauer's Nachricht vom 08.01.2015 11:22
(localtime):

…

> While systat tells:
>    3 igb1:que 0
> 1619 igb1:que 1
>    3 igb1:que 2
>    1 igb1:que 3
>
> sysctl dev.igb tells:
> dev.igb.1.queue0.interrupt_rate: 43478
> dev.igb.1.queue1.interrupt_rate: 76923
> dev.igb.1.queue2.interrupt_rate: 111111
> dev.igb.1.queue3.interrupt_rate: 90909
>
> How do I have to understand sysctl's interrupt_rate value?

Even more interesting, is it reasonable to get constantly visually
strange results from igb0's interrupt_rate?
'sysctl dev.igb | grep rate'
dev.igb.0.queue0.interrupt_rate: 111111
dev.igb.0.queue1.interrupt_rate: 111111
dev.igb.0.queue2.interrupt_rate: 111111
dev.igb.0.queue3.interrupt_rate: 41666
dev.igb.1.queue0.interrupt_rate: 100000
dev.igb.1.queue1.interrupt_rate: 76923
dev.igb.1.queue2.interrupt_rate: 37037
dev.igb.1.queue3.interrupt_rate: 52631
…
dev.igb.0.queue0.interrupt_rate: 125000
dev.igb.0.queue1.interrupt_rate: 111111
dev.igb.0.queue2.interrupt_rate: 111111
dev.igb.0.queue3.interrupt_rate: 66666
dev.igb.1.queue0.interrupt_rate: 40000
dev.igb.1.queue1.interrupt_rate: 43478
dev.igb.1.queue2.interrupt_rate: 37037
dev.igb.1.queue3.interrupt_rate: 52631
…
dev.igb.0.queue0.interrupt_rate: 100000
dev.igb.0.queue1.interrupt_rate: 111111
dev.igb.0.queue2.interrupt_rate: 111111
dev.igb.0.queue3.interrupt_rate: 100000
dev.igb.1.queue0.interrupt_rate: 34482
dev.igb.1.queue1.interrupt_rate: 6097
dev.igb.1.queue2.interrupt_rate: 83333
dev.igb.1.queue3.interrupt_rate: 76923

igb0 doesn't look random enough to me ;-)

Any help highly appreciated!

Thanks,

-Harry


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