Doing this will slow down the qdisc - it does already run an external classifier first if you install one. On typical laptops performance is not a problem, but one common usage does have problems. The performance of a wireless home gateway based on a simple linux kernel configuration (NAT, iptables, bridging) is significantly slower than a VxWorks based one. With the arrival of 802.11n improving the performance of the stack is very important. The VxWorks solution may be less flexible in terms of what it can do, but it will allow the full 802.11n bandwidth to be achieved on slower embedded CPUs than Linux does. How to improve the linux kernel networking to improve it's efficiency here is a hard problem.
Simon -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jeff Garzik Sent: Wednesday, October 25, 2006 7:39 PM To: Patrick McHardy Cc: David Kimdon; netdev@vger.kernel.org; John W. Linville; Jiri Benc Subject: Re: [patch] d80211: use pfifo_qdisc_ops rather than d80211-specific qdisc On Thu, Oct 26, 2006 at 03:21:10AM +0200, Patrick McHardy wrote: > Considering that it is possibly and may be desirable to attach a > different qdisc than the built-in multiband qdisc, it might also make > sense to split the 80211 specific classification in a seperate > classifier module to allow simple classification of management traffic > with other qdiscs. I've been telling the wireless people this for ages... Jeff - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
