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Date:      Fri, 18 Nov 2011 09:46:02 +0100
From:      Matteo Landi <matteo@matteolandi.net>
To:        John Baldwin <jhb@freebsd.org>
Cc:        freebsd-current@freebsd.org
Subject:   Re: ixgbe and fast interrupts
Message-ID:  <CALJ8J_HZiJfh_id%2BggaYZpU5UhUjZy==CK9jmdR4pePjfi=2gw@mail.gmail.com>
In-Reply-To: <201111170953.58151.jhb@freebsd.org>
References:  <CALJ8J_HPZewO12uanb=kctQYwepMssr63E0DQh9CqV6PGaC=JA@mail.gmail.com> <201111170953.58151.jhb@freebsd.org>

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> you probably want to be using MSI-X for a 10G NIC instead of INTx anyway.

Why do you say that? Is MSI-X faster than INTx in terms of interrupt
latency? When should I use MSI-X, instead of fast filters interrupts
(fast interrupt?), instead of ithread interrupts? Thanks in advace.


Regards,
Matteo

-- 
http://www.matteolandi.net/



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