from Guenter Bietzig:
> that's also my observation. With a 486/100 Mhz, UART16550 and 56K-Modem
> the best throughput (for me) is with COM-Speed 28800 and Modem line
> speed 33600.
> If setting Modem line speed to 56k, with my telephon line, I get
> a maximum of 44k.
> On a PIII/450Mhz I've got the same result. Setting COM-Speed above 28800,
> on both machines, I get a lot of errors in Arachne's TCP/IP-Statistic which
> will slowdown any download.
> I think the (packetdriver) epppd.exe and/or the COMx-part in core.exe
> can't handle such speed.
This really seems weird, that holding back the modem speed would improve
Arachne performance. I never thought of trying. If I mentioned that to my ISP,
they'd think I was going crazy. But EPPPD must be OK with 56K modem and COM
speed 115200, since DOS Lynx386 running under DR-DOS 7.03 seems to like it that
way, and other DOS Internet programs don't seem to have problems associated with
the COM speed. Maybe something in core.exe is at fault? Maybe that's why I
found Arachne so slow? Possibly I could limit modem speed to 33.6K or 28.8K,
would have to check the CD that came with the modem for the appropriate addition
to the init string. This would be for Arachne only, so I could set up to dial
from within Arachne and dial separately for other DOS Internet programs, but
that would be rather a nuisance and an incentive to use the other DOS Internet
programs instead of Arachne. Maybe Arachne is too slow rendering the images?