From owner-freebsd-current@FreeBSD.ORG Fri Nov 18 08:46:24 2011 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 445781065675 for ; Fri, 18 Nov 2011 08:46:24 +0000 (UTC) (envelope-from landimatte@gmail.com) Received: from mail-gy0-f182.google.com (mail-gy0-f182.google.com [209.85.160.182]) by mx1.freebsd.org (Postfix) with ESMTP id E7C3B8FC18 for ; Fri, 18 Nov 2011 08:46:23 +0000 (UTC) Received: by ghbg20 with SMTP id g20so176296ghb.13 for ; Fri, 18 Nov 2011 00:46:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type; bh=V2RhuIJkm8JY1KLsKDaAr1L+w/KOcavFxwRaNmaqeAM=; b=riHdnlv+DwCKRlUikU4NPmvzlr93+EZmGWGL5rnRXOEAWQQK0MDs+W0DCb9LMg1mQQ PH31mj8Bo4FTZWQjvkWiBzXaEEL9mE7pzwE/7+vYDF+j/p5e3GLO1XzzYzPTcWvUrUEN sNlFkY79gsNRIUNTavD/aFX8F216IzL0bvEs0= Received: by 10.50.89.227 with SMTP id br3mr2290681igb.14.1321605983060; Fri, 18 Nov 2011 00:46:23 -0800 (PST) MIME-Version: 1.0 Sender: landimatte@gmail.com Received: by 10.50.47.197 with HTTP; Fri, 18 Nov 2011 00:46:02 -0800 (PST) In-Reply-To: <201111170953.58151.jhb@freebsd.org> References: <201111170953.58151.jhb@freebsd.org> From: Matteo Landi Date: Fri, 18 Nov 2011 09:46:02 +0100 X-Google-Sender-Auth: BNMhQVguqlf99QxZbUONNdYLZGE Message-ID: To: John Baldwin Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-current@freebsd.org Subject: Re: ixgbe and fast interrupts X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Nov 2011 08:46:24 -0000 > 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/