View Full Version : upload /download speed
we on the 600k package but i swear if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawl :erm:
as i dont know how cable works could someone explain why this is the case :confused:
we on the 600k package but i swear if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawl :erm:
as i dont know how cable works could someone explain why this is the case :confused:
The speed you are downloading at is affected by the sites you visit, not all are boardband enabled. Big sites are more likely to have the bandwidth.
Last year I downloaded the entire Columbia Accident Investigation Boards report in the shuttle all 1.2 Gigs at close to by 1Mb (128KB) bandwidth, and some site I barely hit 20k.
To check your upload/download speeds check the link below (this can be affected if used during peak hours & when the USA is up)
http://www.asdlguide.org.uk/tools/speedtest.asp
hope this helps
ian@huth
27-04-2004, 20:40
we on the 600k package but i swear if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawl :erm:
as i dont know how cable works could someone explain why this is the case :confused:
If you are uploading at the maximum speed possible and doing anything else with your connection at the same time then your connection will start to crawl. Whatever else you are using the connection for is adding to the upload requirements of your connection, maybe just "ack" packets. It is better to throttle back your upload instead of trying to max it out.
naa what i ment is if u do somthing that is seriously hitting the upstream i swear it can pretty much kill off the downstream as well.
and that can be anything from ftp upload to game or even the dredded p2p
we on the 600k package but i swear if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawl :erm:
as i dont know how cable works could someone explain why this is the case :confused:
It is due to the way TCP works. As you start to reach the maximum upload speed (say 128k), the download speed will start to rapidly fall to the same speed. :)
Check out
http://www.asdlguide.org.uk/tools/speedtest.asp
this will tell you your upload/download speeds
it will won't be often that you can get you max speeds
P2P is only as good as the connects used
ian@huth
27-04-2004, 21:01
naa what i ment is if u do somthing that is seriously hitting the upstream i swear it can pretty much kill off the downstream as well.
and that can be anything from ftp upload to game or even the dredded p2p
It will kill off the downstream because the upstream cannot send back "ack" packets very quickly to say that it has received the packet of download. The downstream then tends to slow down to the same sate as the upstream. This is why upstream is a more valuable commodity as there is far less upstream available on a UBR than downstream. That is why I suggest throttling back uploads to leave room for the upstream requirements of whatever you may want to download.
Check out
http://www.asdlguide.org.uk/tools/speedtest.asp
this will tell you your upload/download speeds
it will won't be often that you can get you max speeds
P2P is only as good as the connects used
Yeah found out by throttleing the upload to around 10k it really did speed the downstream up
btw whats sort of speed is average for ntl 600k conn i think i usally can get around 15k up peaks at 17 sometime and about 67 - 78kb down depending on what im doing.
That is of course when its working!
600kbps = 75kB/s
128kbps = 16kB/s
600kbps = 75kB/s
128kbps = 16kB/s
True, but packet overheads mean you will never quite get 100%.
600kbps = 75kB/s
128kbps = 16kB/s
hmm thanks thought my speed sounded about right :)
if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawlYes - see http://homepage.ntlworld.com/robin.d.h.walker/cmtips/downup.html for the explanation.
I have this problem with DC+ it means that I hardly ever get a download above 15k, DC doesnt have any way of limiting the upload, so what can I do.
I have this problem with DC+ it means that I hardly ever get a download above 15k, DC doesnt have any way of limiting the upload, so what can I do.
use software where you can restrict the upload.... :confused:
If you are downloading from somewhere else, then just shutdown DC+ comepletely when you are not using it.
Is there an app I can use that will limit my upload, or will I have to use a different p2p prog with an inbuilt one?
I dont want to limit it, but I hear it works a lot better at about 97%
Is there an app I can use that will limit my upload, or will I have to use a different p2p prog with an inbuilt one?Many P2P applications have an upload rate-limiter. Alternatively you can use commercial bandwidth-control applications such as NetLimiter http://www.netlimiter.com/.
I think changing to a different p2p prog is my best bet, I'll have to have a look around for a good one.
Thanks for the help peeps
Check out
http://www.asdlguide.org.uk/tools/speedtest.asp
this will tell you your upload/download speeds
it will won't be often that you can get you max speeds
P2P is only as good as the connects used
Try http://speedtest.nildram.co.uk - good for a quick downstream check.
It DOES go through port 80 (unlike ADSLguide) so if your proxy is pants, it'll show.
SMHarman
28-04-2004, 14:09
True, but packet overheads mean you will never quite get 100%.
Well you will get 16k of packets, but that will result in 8-10k of data once the headers are stripped and the data reassembled.
Ignition
28-04-2004, 20:13
Well you will get 16k of packets, but that will result in 8-10k of data once the headers are stripped and the data reassembled.
Eeeek not quite that high - 12 - 14% loss in overheads.
we on the 600k package but i swear if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawl :erm:
as i dont know how cable works could someone explain why this is the case :confused:I've only ever managed 11k on stb upload :mad:
vBulletin® v3.8.11, Copyright ©2000-2024, vBulletin Solutions Inc.