Re: Experiencing very slow browsing at times (atheros wireless)

["Sepherosa Ziehau" <sepherosa@xxxxxxxxx>]

On 5/23/07, Petr Janda <elekktretterr@exemail.com.au> wrote:
> >>     Maybe also try turning off TCP sack and window scaling
> >>     (net.inet.tcp.sack=0, net.inet.tcp.rfc1323=0), in case there's an
> >>     issue there.  I noticed that the server is using both, and there
> >>     could be a bug on the server (or in DragonFly, but more likely on
> >> the
> >>     server if that turns out to be the problem).
> >>
> >>
> >>
> >
> >
> With both of them set 0 it is still happening. How can we debug it?

Do non-802.11 tcpdump and 802.11 tcpdump (not radio), so we can see
what ether_input() gets.  Also turn on sysctl
net.wlan0.debug=0x08000000.   Looks like most of packets sent by AP
need mac level retry ...

Best Regards,
sephe

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