Messages in this thread | | | Date | Fri, 29 Mar 1996 12:41:14 +0000 (GMT) | From | Steve Davies <> | Subject | Re: Slow PPP? |
| |
On Fri, 29 Mar 1996, Mike Castle wrote:
> Amazingly enough Steve Davies said: > > I just tried an experiment to check the throughput (using ftp) between my > > host and my ISP. Firstly in Windoze 3.1, and then in Linux (1.3.77). My > > modem is a USR Sportster 28.8K internal ISA-bus, connecting to my ISP at > > 28.8k (serial port set spd_vhi, 115,200 baud, h/w handshake) > > > > 100Kb test file Winsock ppp-2.2.0e > > ----------------------------------------------------------------- > > /pub/test/emptyfile (compressible) 6.24 Kb/s 3.80 Kb/s (-40%) > > /pub/test/fullfile (non-compressible) 3.11 Kb/s 2.80 Kb/s (-10%) > > Which end did you take the timings from? I assume the ISP end. > If not, these numbers are meaningless.
Due to the nature of the beast, these are the timings of an FTP receive from my ISP (They provide a /pub/test directory for just this purpose)
> With cslip, and 1.3.80, over masquerade, I'm getting 3.5 Kb/s > with random data.
Hmmm... Nice :-)
> What happens if you do NOT set serial port to spd_vhi? I've > never done that. I still don't see a reason to do it. Then > again, I don't use the computer with the modem attached for much > else, so the time spent talking to the modem isn't that important > for me.
If I don't set spd_vhi then the kernel refuses to set the speed to 115,200baud and 'chat' soon fills up my system logs !
Hope this clears thing up...
Steve
| |