Date: Tue, 29 Jun 1999 20:23:43 -0700 (PDT) From: Donald Burr <dburr@pobox.com> To: Tim Baird <tim@storm.digital-rain.com> Cc: freebsd-questions@freebsd.org Subject: RE: Screen saver resource hog? Message-ID: <XFMail.990629202343.dburr@pobox.com> In-Reply-To: <3.0.2.32.19990629150111.007f2420@storm.digital-rain.com>
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A long time ago in a galaxy far, far away (actually, it was on 29-Jun-99), the great prophet Tim Baird once wrote: > I have found that the "logo" screen saver on my P75 box running > 3.2-RELEASE > causes the network I/O to slow down to a horribly clunky crawl... > > Has anyone observed a similar correlation? I changed net cards (NE2000 > to > Etherlink III) and it had no obvious effect. > > When the screen saver is not active, my throughput on a quiet 10BaseT > net > is between 750 and 1000 kb/s . When the screen saver is active, I get > about 20 kb/s if I'm lucky, it is very bursty as well. > > Besides avoiding this saver, is there anything else someone can suggest? You should check your IRQ's thoroughly. Especially check which IRQ's your PCI cards are being assigned to. I had a problem with my boxes that has similarities to yours: when I was in console mode (no X), my network performance was abysmal (10-20 K/sec), but when I was running X I had consistently ~990KB/s performance, which is more what I would expect. Turns out that my PCI cards were sharing IRQ's with other stuff, and furthermore, my network card was getting assigned to IRQ 9, which many motherboards do *not* support very well (mine didn't... Abit BX6 Rev 2.0, in case you were curious). Once I moved PCI cards around and took out some stuff to free IRQ's (USB! USB! USB!), everything worked fine and dandy, both in console and X mode. --- Donald Burr <dburr@pobox.com>-Member The FreeBSD Project| PGP: Your *NEW* WWW HomePage: http://more.at/dburr/ ICQ #16997506 | right to Address: P.O. Box 91212, Santa Barbara, CA 93190-1212 | 'Net privacy. Phone: (805) 957-9666 FAX: (800) 492-5954 | USE IT. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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