Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 6 Dec 2011 19:40:21 +0200
From:      Daniel Kalchev <daniel@digsys.bg>
To:        Jack Vogel <jfvogel@gmail.com>
Cc:        Luigi Rizzo <rizzo@iet.unipi.it>, current@freebsd.org
Subject:   Re: datapoints on 10G throughput with TCP ?
Message-ID:  <F5BCA7E9-6A61-4492-9F18-423178E9C9B4@digsys.bg>
In-Reply-To: <CAFOYbcmVR_K0iZU_Z4TxDVzPzx6-GZuzfCxUZbf6KQn4siF2UA@mail.gmail.com>
References:  <20111205192703.GA49118@onelab2.iet.unipi.it> <2D87D847-A2B7-4E77-B6C1-61D73C9F582F@digsys.bg> <20111205222834.GA50285@onelab2.iet.unipi.it> <4EDDF9F4.9070508@digsys.bg> <4EDE259B.4010502@digsys.bg> <CAFOYbcmVR_K0iZU_Z4TxDVzPzx6-GZuzfCxUZbf6KQn4siF2UA@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
I see significant difference between number of interrupts on the Intel =
and the AMD blades. When performing a test between the Intel and AMD =
blades, the Intel blade generates 20,000-35,000 interrupts, while the =
AMD blade generates under 1,000 interrupts.

There is no longer throttling, but the performance does not improve..=20

I set it via=20

sysctl hw.intr_storm_threshold=3D0

Should this go to /boot/loader.conf instead.

Daniel

On Dec 6, 2011, at 7:21 PM, Jack Vogel wrote:

> Set the storm threshold to 0, that will disable it, its going to =
throttle your performance
> when it happens.
>=20
> Jack
>=20




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?F5BCA7E9-6A61-4492-9F18-423178E9C9B4>