On Sat, 15 Jul 2000, Joe S. Warren wrote about, Slow performance of seriellink to
ISP:
> My seriel modem link to my ISP seems much slower under LINUX than under
> WINDOWS. KPPP reports a modem connect speed of, normally, 50666. I am
> using kppp 1.6.24 in LINUX Mandrake 7.0. My modem device is /dev/ttyS1,
> flow control is CRTSCTS and Coonnection speed is 115200 per the setup
> option in kppp. The throughput graph in kppp indicates an initial speed
> that is some 80% of the connect speed but it quickly (by the 3rd or 4th
> packet) falls off to around 30% of connect speed or less. Large e-mail
> files (>600kB) require considerable more time to transmit or receive
> than when I use OUTLOOK EXPRESS under WIN98SE. Any suggestions as to
> where the bottleneck might be?
>
> Joe S. Warren
> PS I am a total newbie to UNIX and LINUX but spent 25 years as a
> realtime applications and operating systems programmer on mainframes
> from CDC and SEL.
You did not mention the kernel version used, however the information given
"mandrake" 7.0 would indicate something like 2.2.14. I am a vivid reader of
the linux-kernel-mailing list, about 2 weeks ago there was a mail asking
the same question, for the life of me i cannot remember what the answer
was, however it was a very easy to do answer, some or other setting in the
proc filesystem.
Now all of the above is of absolutly no help to you, but, you may get an
answer concerning your problem if you write a small mail (say please) to
[EMAIL PROTECTED] you will possably need to subscribe first as
it is a very closely controled list.
O i think i remember now, something to do with bsd_comp, dam my memory
cells are failing.
I am sure some hacker on the mentioned list will point you to a decent
answer.
Or possably someone else here possably Ray will be able to help.
--
Regards Richard
[EMAIL PROTECTED]
http://people.zeelandnet.nl/pa3gcu/
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