Date: Mon, 25 Feb 2002 12:49:59 +0200 (EET) From: Adrian Penisoara <ady@warpnet.ro> To: "Forrest W. Christian" <forrestc@imach.com> Cc: freebsd-isp@FreeBSD.ORG, freebsd-network@FreeBSD.ORG Subject: Re: Lucent Avaya Comm 11Mbps wireless eating all CPU Message-ID: <Pine.BSF.4.10.10202251246350.43109-100000@ady.warpnet.ro> In-Reply-To: <Pine.BSF.4.21.0202241740100.28783-100000@workhorse.iMach.com>
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Hi, On Sun, 24 Feb 2002, Forrest W. Christian wrote: > 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... Yes, in top Interrupts can jump from 10-13% to 97% when I go at near 3Mbps traffic. > > > 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. Well, this looks normal to me. > > > 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... > Someone suggested thet it might be a PC BIOS shared IRC. What can I do about that ? Thanks, Ady (@warpnet.ro) _______________________________________________________________________ | Programming in BASIC causes brain damage. | | (Edsger Wybe Dijkstra) | To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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