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Date:      Fri, 13 Jan 2012 15:09:38 -0500
From:      Iordan Iordanov <iordan@cdf.toronto.edu>
To:        freebsd-bugs@freebsd.org
Subject:   Re: Intel x520-t2: interrupt storm detected + throttling
Message-ID:  <4F108F82.1010901@cdf.toronto.edu>
In-Reply-To: <CAFOYbckTT4Nz_fghCGuYqGz7hL82EepjACAJ2XUdxUrqDPN2Qg@mail.gmail.com>
References:  <4F106EA6.3000003@cdf.toronto.edu> <CAFOYbckTT4Nz_fghCGuYqGz7hL82EepjACAJ2XUdxUrqDPN2Qg@mail.gmail.com>

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Hi again Jack,

On 01/13/12 13:04, Jack Vogel wrote:
> do a `sysctl hw.intr_storm_threshold`  its too low.

It is set to 1000 by default.

> My suggestion is to set that to 0, this disables the test. But otherwise
> you will
> need to increase it high enough to eliminate the throttling.

This did quiet down the kernel with regards to interrupts.

Many thanks!
Iordan



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