On Fri, 28 Mar 2003 11:23:15 -0800 Bernd Koepsell <bernd@covenantmail.net> wrote:
zentara wrote:
On Thursday 27 March 2003 18:14 pm, Bernd Koepsell wrote:
I am using a U.S. Robotics 56K Performance Pro V.92 PCI modem which is fully supported. My ISP supports V.92. I am using Kinternet to connect. Yet, when downloading files from http or ftp, my datarate is averaging 3Kb/s( yes it spikes to 10Kb/s and drops to 0Kb/s, but still
Yeah, dialup speeds are related to phoneline quality, you don't get top v.92 speed just because you have that type of modem.
*Would you consider "trying" (without success) to download a 100k file and a 50k file at the same time, taxing my bandwidth?
No, but 1 download might lockout the other until it's finished. I've noticed that with mozilla, it will wait until the first download is finished, then start the second. Under the old netscape, I used to be able to get them going simultaneously.(although both at a slower rate). I used to open up 10 downloads at a time, and they would all crawl. Now if I use wget to download some big file, then start a small download with mozilla, wget backs off and lets mozilla work simultaneously.
I'll read up and try wget. Thank you.
Although... let me tell you what I'm used to in the non-linux world. Previous to switching my os, I had download speeds (same modem, same isp, same phone line, etc., using Netscape 4.7, 6 or 7, or the dreaded IE 5.0 or 5.5) averaging 4.6Kb/s. Obviously, I "shared" that average speed with multiple downloads or further access with WWW or mail.
Well 1 thing to keep in mind is that windows might have been lying to you. :-) There are 2 speeds, the connection speed and the rate of data transfer. (I may not be explaining it properly) If you go to download an .exe file in windows which isn't compressed, you can get an elevated bandwidth report, because it's reporting how much of the file is being transmitted per second, not the bit rate. I've noticed that alot in linux, in comparing downloads of compressed files, and plain text files. My download rate for compressed files is around 3.3K, but when I get an uncompressed text file, the reported rate can jump to 4.5k . But compressed files top out at 3.3k/sec, and are often lower depending on the weather, time of day, isp-server-load, etc. Best times are in the morning.
Now that I'm using linux, and the Netscape 6 clone, my average speed has dropped all the way down to 3.0Kb/s, plus I am "locked" on that one download without further access or the potential of multiple downloads.
Yeah I get the same thing with mozilla, see above. I think it is mozilla's way of helping decrease server loads. It's probably easier for a server to send out files 1 at a time at top speed, rather than 2 files at half speed. Maybe the server notices it from it's end, seeing 2 files to the same destination address makes it pause on 1, until the first is completed. ???
I don't think the difference is Mozilla, because the same thing happens when using Yast2 for online updates from an ftp server. I am able to use other apps (that don't use my meager bandwidth) while downloading, so it isn't my cpu either.
Well the server may be detecting the same destination address?? Have you tried doing 2 downloads simultaneously, but from different servers?
Could it be my modem configuration (I used Yast), or my dialer (KInternet), or..., or..., or...?
Well you could try to use the setserial commands to change your com port to 115 Kbps. It should be setup properly for you nowadays, but in the old days the default com port speed was 9600, or some low value. You could put the setserial command in boot.local. Does you /etc/ppp/isp.options file have a line 115200 in it? As a test, I would use wget to download some big compressed file. If you get greater than 3K/sec you are doing alright as far as my dialup experience goes. The simultaneous download lockout is probably more of a software problem, than a modem or com port problem. The only way to tell if windows is downloading faster, is to time identical downloads of big compressed files, from linux and windows. Use a stopwatch. P.S. I love mozilla, but I wouldn't use Netscape anymore. They seem to automatically open up connections to their "help center" and "mail advertsing center". Maybe that is stealing some bandwidth, although windows does alot of that too. -- use Perl; #powerful programmable prestidigitation