From owner-freebsd-hackers@FreeBSD.ORG Sat Apr 24 10:11:26 2004 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0742416A4CE for ; Sat, 24 Apr 2004 10:11:26 -0700 (PDT) Received: from blurp.one.pl (blurp.t4.ds.pwr.wroc.pl [156.17.226.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9207B43D31 for ; Sat, 24 Apr 2004 10:11:25 -0700 (PDT) (envelope-from gizmen@blurp.one.pl) Received: by blurp.one.pl (Postfix, from userid 1001) id 6010A9C2; Sat, 24 Apr 2004 17:00:52 +0200 (CEST) Date: Sat, 24 Apr 2004 17:00:50 +0200 From: GiZmen To: freebsd-hackers@freebsd.org Message-ID: <20040424150050.GA93683@blurp.one.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.6i Subject: device pooling and high interrupts X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Apr 2004 17:11:26 -0000 Hello, I am runnign freebsd 5.2.1 on 386 arch with two rl lan cards. My mainboard is on VIA KT 266A with AMD athlon 1.1. I read man polling and i have HZ=1000. My problem is that when i set up sysctl variable kern.polling.enable=1 my interrupts greatly increase. When my system is idle and indicate 0-1% interrupts with out polling. and when i turn on polling interrupts goes up to about 20% on idle system. Is it normal ? I never before use polling and i dont know that i have something bad in my system ? Can somebody explain me this ? thx -- Best Regards: GiZmen UNIX is user-friendly; it's just picky about its friends UNIX is simple; it just takes a genius to understand its simplicity