View Full Version : Atheros speed
jlawrence
12-19-2003, 02:56 AM
Hi,
Is anyone else finding that the atheros chipset is considerably quicker than the hermes/ruby when used in an access point ?
I've only got it set to 802.11b atm as I've not yet sorted linux drivers for 802.11g or a for my laptop - can't wait to see what the throughput with those.
With a hermes card in my laptop
I'm seeing 731KB/s throughput with the atheros and 420KB/s with hermes in the acess point respectvely.
I'm impressed - especially when you consider the drivers' not even complete yet.
I'm glad it's working well for you. :D
georgew
12-19-2003, 10:39 AM
It should be much faster, and it should use less CPU too.
The difference is the busmaster operation of the atheros chips against the byte-wide byte-at-a-time io that nearly all of the other older cards use. In terms of cpu consumption and data transfer speed, the atheros is an order of magnatude more efficient than the old 802.11b stuff.
bobbyc
12-19-2003, 06:50 PM
jlawrence,
I see you are using hermes card in laptop; I have been using this too. When I go to link test in the client manager, it does not report anything.
Does this happen to you too?
Bob C
The link test only works if the peer system has an Intersil or Agere 11b card. You will not be able to test against other brands of cards, such as atheros, etc.
bobbyc
12-19-2003, 07:22 PM
Ahhhhh, is that also why the clients' received singal is always -102 in the starOS association list?
Bob C
Yes, this is the reason StarOS only shows the remote signal for Intersil and Agere clients as well.
Davader
12-20-2003, 12:34 AM
Is there plans to have signal readings?
How can we be certain a link is good, without some form of measurement?
bobbyc
12-20-2003, 12:40 AM
It's up to the client, not the AP.... right?
Bob C
The remote signal readings are not possible for clients that do not support it.
go.fast
12-20-2003, 08:37 PM
Hi,
Is anyone else finding that the atheros chipset is considerably quicker than the hermes/ruby when used in an access point ?
I've only got it set to 802.11b atm as I've not yet sorted linux drivers for 802.11g or a for my laptop - can't wait to see what the throughput with those.
With a hermes card in my laptop
I'm seeing 731KB/s throughput with the atheros and 420KB/s with hermes in the acess point respectvely.
I'm impressed - especially when you consider the drivers' not even complete yet.
Is this a wisp AP that is serving multiple clients in production?
Is this an indication that it is time to swap out lucents for the Atheros B in production systems?
George
georgew
12-20-2003, 09:37 PM
Not yet, but soon....
I'd ask that question again in about a month or two.
jlawrence
12-22-2003, 10:41 AM
ATM, we're not using any atheros chips in production - nor are we likely to for at least another month or so.
So far, the driver looks very promising and my initial tests with 802.11b astounded me by being so much quicker. I was also impressed so far with my 802.11a tests - throughput around of 25 Mbps using madwifi drivers on the laptop. I've yet to try any of the turbo modes.