From owner-freebsd-isp Sun Feb 24 16:51:53 2002 Delivered-To: freebsd-isp@freebsd.org Received: from workhorse.iMach.com (workhorse.iMach.com [206.127.77.89]) by hub.freebsd.org (Postfix) with ESMTP id 8BCB337B404; Sun, 24 Feb 2002 16:51:40 -0800 (PST) Received: from localhost (forrestc@localhost) by workhorse.iMach.com (8.9.3/8.9.3) with ESMTP id RAA28798; Sun, 24 Feb 2002 17:43:06 -0700 (MST) Date: Sun, 24 Feb 2002 17:43:06 -0700 (MST) From: "Forrest W. Christian" To: Adrian Penisoara Cc: freebsd-isp@FreeBSD.ORG, freebsd-network@FreeBSD.ORG Subject: Re: Lucent Avaya Comm 11Mbps wireless eating all CPU In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Sun, 24 Feb 2002, Adrian Penisoara wrote: > I have a PCMCIA Lucent Avaya Communication Silver 11Mbps wireless card > (hosted on a PCI PC Card bus) installed on a gateway with a Pentium > 233Mhz MMX CPU and this card eats all CPU at about 3Mbps (with >90% of > the time spent in interrupts). This isn't normal... Are you sure that it is what is eating the processor? What does top show you... > My hypothesis is that the CPU is hogged by the WEP encryption > calculations done by the driver in the interrupt handler or it might be > something wrong with the driver. WEP is on the card not in the driver. There is no performance impact to speak of in enabling WEP. > Has anyone seen this issue ? Is it normal ? Could a better CPU (e.g. > 700Mh Duron) handle the whole 11Mbps bandwidth ? Something is amiss. I can get 4-5Mb/s through a ISA carrier without even thinking. That is on a 486/66, and the load is basically nothing... - Forrest W. Christian (forrestc@imach.com) AC7DE ---------------------------------------------------------------------- The Innovation Machine Ltd. P.O. Box 5749 http://www.imach.com/ Helena, MT 59604 Home of PacketFlux Technogies and BackupDNS.com (406)-442-6648 ---------------------------------------------------------------------- Protect your personal freedoms - visit http://www.lp.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message