[clug] X over 802.11b

Steven Hanley sjh at svana.org
Mon Oct 27 16:12:04 EST 2003

On Mon, Oct 27, 2003 at 04:03:50PM +1100, Martijn van Oosterhout wrote:
> IIRC, the problem with wireless is not the speed but the latency. I don't
> remember the ping times but it doesn't take much for it to be noticable. So
> something like LBX might improve stuff by simply caching stuff and reducing
> traffic.
> I do remember something about recent protocols trying to address this issue
> but I don't remember if it worked.

Hmm latency can get up there, though I find it doesnt tend to be a problem
unless the wireless network is already busy.

[12:40:05] 16 shiva sjh ~>ping diver
PING diver.anu.edu.au ( 56 data bytes
64 bytes from icmp_seq=0 ttl=254 time=19.3 ms
64 bytes from icmp_seq=1 ttl=254 time=20.0 ms
64 bytes from icmp_seq=2 ttl=254 time=19.9 ms

--- diver.anu.edu.au ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 19.3/19.7/20.0 ms

which is from my laptop (wireless and cipe encrypted to a gateway then
routed through 100MBit network (no hops) to my desktop at work).

I have seen times below 10 ms for the above (usually on Bob's laptops).

> On Mon, Oct 27, 2003 at 03:45:01PM +1100, James Macnicol wrote:
> > Although I do vaguely remember what running X over 14.4k modem feels like
> > (did that about 10 years ago), I'm not too impressed with X over 802.11b
> > which does feel *slow*.  I'm not doing anything fancy, just editing stuff in
> > a single xterm window with screen, a couple of shells and a tty-mode emacs.
> > Does something like LBX help here or is this the best that can be done?  Has
> > anyone compared this type of thing with the newer 802.11g cards and does it
> > feel any better?

I use emacs remotely from tiem to time, ssh to another machine and type
emacs & (so it lanches an X window onto my laptop screen) and it seems to be
perfectly fast enough to type and generally use)

Of course as always YMMV, in your case it seems it is varied.

	See You

sjh at wibble.net http://svana.org/sjh
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