Re: speed up modem connection
on Thu, May 31, 2001 at 12:24:47AM -0700, John Joe (zhoupp@yahoo.com) wrote:
> I surf with Netscape 4.0 for Linux and find it much
> slower than IE 5.0 of MS Winodws. I've change MTU to 576 (MTU is an
> argument to pppd) and it didn't help.
>
> I connect by 33.6k internal modem. I use Debian 2.1.
you could try editing your /etc/serial.conf and add low_latency to the line
that coresponds with the serial port of your modem, here is what it does:
[snip from setserial (8) manpage]
Minimize the receive latency of the serial device at the cost of
greater CPU utilization. (Normally there is an average of 5-10ms
latency before characters are handed off to the line discpline to
minimize overhead.) This is off by default, but certain real-time
applications may find this useful.
i used to had problems with downloads getting interrupted due to some other
process hogged temporarily all the cpu, now i don't have this problem anymore
and my download speed averages 3.6kb/s when connected at 31k, and the downloads
doesn't get interrupted anymore. I have p166 with 96mb ram and i haven't
noticed any cpu utilization increase yet, 90% of the cpu is eaten by the
seti@home client anyway :)
My MTU is set to 1500 and txqueuelen to 10. For the miserable telephone line
that i have this is pretty much the best i could squeeze out of it :)
Don't forget to re-run /etc/init.d/setserial when you done ;)
HTH
Dingo.
).|.(
'.'___'.'
' '(>~<)' '
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-ooO-=(_)=-Ooo-=-=-=-=-=-=-=-=-=-=-=-=-=-
Petr [Dingo] Dvorak dingo@pdragon.org
Coder - Purple Dragon MUD pdragon.org port 3333
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-[ 369D93 ]=-=-
Debian version 2.2.18pre21, up 4 days, 12 users, load average: 1.01
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Reply to: