Cable Internet is notorious for slow speeds during busy hours. If lots of people are online on one particular group transmitter and using it, it will bog down. I have seen times where it has gotten down to 25 bytes/second on my 22Mbps line.
Downloading an "update" or patch to a program like Roxio Easy Media Creator Suite 10 (a cd burning program) nowadays requires the fastest broadband internet access you can get, because they are typically 800-900MB now. My Paint Shop Pro X2 update was 44MB. Sometimes, they are not just patching one or two programs – they are replacing the whole package. So brace yourself...
Equation for this form below:
overheadratio=10*(65536bytesperpacket+1024bytesoverhead)/65536.0bytesperpacket
hrs=(size×overheadratio/(bandwidthInBitsPerSecond/8bitsperbyte))/3600secondsinhour
I got the 65536 bytes from the average size of a UDP packet (even though we are really using TCP). must have something for a reference. The packet overhead I chose to be 1024 bytes, it should hopefully cover everything.I am probably grossly inaccurate on the overhead. I got the 10 as a factor from real-world calculations of a sample 116:MiB download at 4480:k bits/sec (this 10x factor was added 2/22/2011). please correct me.
questions I have about various service upload rates: