Date: Sun, 11 Jan 2004 16:03:08 -0800 From: "Kevin Oberman" <oberman@es.net> To: Lorenzo Vicisano <lorenzo@vicisano.net> Cc: freebsd-mobile@freebsd.org Subject: Re: prism 2.5 timeout in wi_cmd 0x010b Message-ID: <20040112000308.03D445D08@ptavv.es.net> In-Reply-To: Message from Lorenzo Vicisano <lorenzo@vicisano.net> of "Sun, 11 Jan 2004 01:15:53 PST." <20040111011553.A12385@cisco.com>
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> Date: Sun, 11 Jan 2004 01:15:53 -0800 > From: Lorenzo Vicisano <lorenzo@vicisano.net> > > same result: the patch doesn't fix the problem. > > However after upgrding the Prism firmware (1.1.0 -> 1.1.1) > the lock up stopped. > > Still I cannot get more that 2.5Mb/s Tx from the Prism (as a client) > to another client (Aironet). A little better (3 / 3.5) from the Prism > to the AP (DI 614+). > > "wi" is reporting a lot of TX collision, but "an" isn't when I change > the direction of the traffic. In this case I get better rate.. but > still not optimal as "wi" get conficts on the ACKs. > > Another anomaly shows up when running dhclient: often the system > freezes/slows down for a few fractions of a second (BTW: I've noticed > this with the Aironet driver as well). Also acquiring a lease > has become more unreliable.. Odd. I have 1.1.0/1.4.9 firmware on my card and it works like a champ with Marko's patch. I was not aware that newer firmware was available. Guess I need to go look for the new firmware. I saw much better performance than this on my system. I moved over 850 MB of data at an average of 531 MB/sec and a peak of 622 MB/sec. That translates to a peak over 5 Mb/s and an average of over 4.3 Mb/s. This was with scp. With ttcp I see transmit speed of 4.1 Mb/s but a receive speed of only 1.3 Mb/s. This is to an AP. The problems seemed to start for me after the upgrade to 1.4.9 so maybe the latest will get things back to normal. I don't often use dhclient, but I have seen no problems when I do. (I use Lars Eggert's location.sh to set up my network for my "normal" wireless access.) -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634
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