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Date:      Tue, 28 Oct 2008 12:55:50 +0200
From:      "Vlad GALU" <dudu@dudu.ro>
To:        "Ivan Voras" <ivoras@freebsd.org>
Cc:        freebsd-net@freebsd.org, jfvogel@gmail.com
Subject:   Re: two NIC on 2 core system (scheduling problem)
Message-ID:  <ad79ad6b0810280355w25005d0bs5188a004da11bf50@mail.gmail.com>
In-Reply-To: <4906EC8D.7070503@freebsd.org>
References:  <200810281235.53508.gizmen@blurp.pl> <4906EC8D.7070503@freebsd.org>

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On Tue, Oct 28, 2008 at 12:42 PM, Ivan Voras <ivoras@freebsd.org> wrote:
> Bartosz Giza wrote:
>
>> Another question is why em0 taskq is eating so much cpu ? BGE interface is
>> actually one that pushes 2 times more packets than em0 and it uses about
>> half cpu comparing to em0. Is that not strange ?
>> Could someone tell my why is this happening ? BGE is faster ? or maybe i can
>> tune some
>
> I have the same problem - em0 taskq eating incredible amounts of CPU. If
> you find a solution, contact me!
>
>
>

Could this be related to the different interrupt handling models?
em(4) uses FILTER, the others use ITHREAD.


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