On Fri, Aug 8, 2008 at 9:49 AM, Luis R. Rodriguez <mcgrof@xxxxxxxxx> wrote: > On Fri, Aug 8, 2008 at 7:16 AM, Jack Howarth <howarth@xxxxxxxxxxxxxxxxx> wrote: >> After replacing my Linksys WRT150N wireless router with an >> Apple Airport Extreme Gigabit ethernet wireless router, configured >> for using the N protocols on the 802.11a wireless frequencies, I >> can confirm that the ath9k git from last week connects to this >> configuration. I have noticed one oddity though. The reported >> signal strength (in the NetworkManager menu bar icon) is significantly >> lower than that shown under Mac OS X 10.5. > > The link quality we report right now should be lower than the real > one. We will enhance this later but rest assured its the same. > >> Also, I notice under Mac OS X >> 10.5, by holding the option key on the Finder's Airport icon, that the >> transmit speed is 300 Mbps when the MacBook Pro is in the same room as >> the wireless router but only 108 Mbps when a couple rooms away. Should >> the ath9k report such dynamic changes in transmit speed? Under Mac OS X >> that transmit speed changes as I move the portable back and forth >> between the two locations. Thanks in advance for any information. > > Keep in mind 2.6.27 has aggregation disabled right now due to the new > TX MQ changes so you won't be able to get aggregation going for any > 11n wireless device. That said, I am not familiar with the Mac OS X > option key thingy to compute throughput. If you can provide technical > details as to how it computes it or where it does this (AP or STA) it > can help. OK it just seems its calculated based on the HT params (HT40, short guard interval) and the rate used. So in your case its probably just that a lower rate is being used by the rate control algorithm. Is suspect we'll get better performance at longer distances once ANI is integrated which is on our TODO list. Luis -- 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
