[lkml]   [2007]   [Dec]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 3/3] net: wireless: bcm43xx: big_buffer_sem semaphore to mutex wrote:
> Could this be the reason my BCM94311MCG rev 1 receives such terrible
> performance with b43 but works well with bcm43xx? The device is
> 802.11b/g but my router is 802.11b. I filed a report on this issue
> here:

No. On my BCM4311/1, my transfer rate peaked at about 12 Mbs with bcm43xx, but increased to 20 Mbs
with b43. These tests were done with iperf with a server running running on a second computer
connected by wire to my router. These rates are for 802.11g. When my interface was locked at 11 Mbs,
the transfer rate was the expected 5.3-5.5 Mbs with both drivers.

> I was told by Michael that I would have to fix it myself, and I am
> trying, but the learning curve is a little steep. If this is relevant,
> I might at least have some direction to go in.

I suspect that mac80211 is doing something that your router does not like. Do you have any chance to
capture the traffic between your computer and the router by using a second wireless computer running
kismet or wireshark? A look at the differences between b43 and bcm43xx should show the reason.


 \ /
  Last update: 2007-12-15 03:33    [W:0.087 / U:1.500 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site