From owner-freebsd-performance@FreeBSD.ORG Thu Apr 10 17:37:26 2003 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7C91837B401 for ; Thu, 10 Apr 2003 17:37:26 -0700 (PDT) Received: from win149.staff.flyingcroc.net (win149.staff.flyingcroc.net [207.246.150.58]) by mx1.FreeBSD.org (Postfix) with ESMTP id EDC6543FAF for ; Thu, 10 Apr 2003 17:37:25 -0700 (PDT) (envelope-from rdb@blarg.net) Received: from localhost (localhost.localdomain [127.0.0.1]) h3B0bPN15057; Thu, 10 Apr 2003 17:37:25 -0700 Date: Thu, 10 Apr 2003 17:37:25 -0700 (PDT) From: RDB X-X-Sender: russell@win149.staff.flyingcroc.net To: Sean Chittenden In-Reply-To: <20030411001347.GI79923@perrin.int.nxad.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-performance@freebsd.org Subject: Re: Semi-polling mode and net.inet.tcp.inflight_enable X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Apr 2003 00:37:26 -0000 > Performance in terms of what? -sc Quite honesty, any sort of positive result. I'm basically just trying to get a handle on what type of real-life situations these settings are intended to benefit. Does semi-polling mode result in less CPU being occupied by "interrupt" state at high bandwidth levels when many IPF rules are being used, for example? Do either of these settings result in lower latency or higher throughput at high bandwidth levels? I don't have a firm handle on what specific real-life issues these two new features were intended to address so I'm not 100% sure how to phrase my question. Russell Brunelle