Hi On Tue, Jan 08, 2013 at 12:10:45PM -0600, Seth Forshee wrote: > Leaving powersave enabled while the scan is suspended requires the use > of PS-Poll to retrieve frames buffered at the AP. PS-Poll isn't a very > efficient means of data transfer and may not even work with drivers not > supporting powersave. These problems can largely be avoided by simply > disabling off-channel powersave when the scan is suspended and enabling > it again when returning to off-channel operation. > > The results of this change are fantastic. Previously when using iperf I > would see greatly decreased throughput (often dropping to 0 bits/sec for > several seconds) and very high packet loss during software scans. This > patch completely eliminates the packet loss and reduces the loss in > throughput to very reasonable levels. I posted a patch, which remove offchannel_ps_disable argument from ieee80211_offchannel_return, since there were possible AP and STA power save state mismash: http://marc.info/?l=linux-wireless&m=135601089321822&w=2 It should give the same effect on performance as this patch. Thanks Stanislaw -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
