Re: Why is WWW so slow????

[Martin P Holland <nospam [at] noether.freeserve.co.uk>]

On Tue, 07 Sep 1999, John Wilkinson wrote:
>sheflug - http://home.freeuk.net/shef.lug
>
>Hi all,
>I have been using SUSE 6.2 for some time now. I use KPPP, with a
>connection script to connect to Virgin net. however I notice that it is
>so slow, sometimes down to 40bps. I have a Hayes 28K modem, and I have
>set the baud rate of the port to 57600 baud, since any faster PPP fails
>to initialise the modem.

OK I am pretty sure that the problem is here and that you _will_ have to mess
with setserial. AFAIK unless you don't have a 16550A UART (everyone does) you
should be able to use 115200 here.

(A useful test to see if it's the modem setup or the ISP would be to sign up
for another free ISP and try them out. You can get working kppp configs for
several UK ISPs at http://www.kppp-archive.freeserve.co.uk)

What output do you get to setserial? Here it is for me:

$ setserial /dev/ttyS1
/dev/ttyS1, UART: 16550A, Port: 0x02f8, IRQ: 3

You could try

setserial /dev/ttyS1 spd_vhi

which according to the man page will try to do 115200 when a lower speed
is requested. (Obviously change ttyS1 to the right device for you.) I'm just
guessing.

I'm assuming your modem is not PnP. If it is then an irq conflict might be the
cause of slow downloads. In that case setserial /dev/ttyS1 autoconfig auto_irq
will probably fix the problem.

>I would like to be able to check out the actual connect speed of the
>modem, how do I do this? I looked at setserial, but it looks so
>complicated.

Check the Show log option in kppp and this will show you the connect speed.

Also Stephen suggested disabling vj header compression. I am doubtful
but you can do this by either:

adding novj to pppd arguments in kppp or putting novj on a line by itself in
/etc/ppp/options.

atb

Martin
--
http://www.shef.ac.uk/~pm1mph

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