nanog mailing list archives
Re: MTU of the Internet?
From: Phil Howard <phil () charon milepost com>
Date: Sun, 8 Feb 1998 00:36:40 -0600 (CST)
that's not what i meant by "serial multiplexing". but can someone please explain why anyone would want to do this? you don't get the bits faster by opening multiple connections, now that persistent http allows you to avoid the inter-object delay that used to be induced by doing a full syn/synack/ack for each object. does seeing the GIFs fill in in parallel really make that much difference, if the total page fill time is going to be the same?
You're assuming that the goal is to get _all_ the bits in the shortest amount of time. And in some cases that is the goal. In others it is not. By loading the images in parallel, with the initial part of the image files being a fuzzy approximation, you get to see about where every button is located, and in many cases you know exactly what it is, and you can click on them as soon as you know where to go. The total page fill time isn't that much of an issue when people are not in a hurry to go on to the appropriate page. In about half of my surfing I never let the pages finish. Many pages are designed with this in mind because they build their images to load low resolution first. What might work better is to just make the whole page be one giant image and that way it can pre-load in low res _and_ you get it in one connection. But now that means much _more_ total bandwidth involved. There is also a psychological perception of speed when images load in parallel. When someone complains about the slowness, and is given the low MTU solution, they often end up being happier. I still say the solution is a way to transmit multiple images in parallel over a single connection. A multiplexer that allowed concurrency would be one way. An image format that allowed scattered objects could be another. -- Phil Howard | no7way61 () anywhere edu blow5me3 () dumbads2 com no7way02 () no21ads7 net phil | stop9ads () noplace9 edu die7spam () anywhere net ads8suck () anywhere com at | end0it44 () no6place net crash855 () s8p3a0m9 org crash905 () dumb1ads com milepost | suck1it2 () lame6ads org suck6it5 () dumbads0 com no60ads5 () nowhere3 com dot | no5spam5 () lame0ads net no9way14 () anywhere edu no9way20 () s7p1a2m0 net com | eat05me5 () spam2mer com stop5ads () nowhere2 com w9x4y3z6 () spammer8 com
Current thread:
- Re: MTU of the Internet?, (continued)
- Re: MTU of the Internet? Dorian R. Kim (Feb 05)
- Re: MTU of the Internet? Kent W. England (Feb 05)
- Re: MTU of the Internet? Per Gregers Bilse (Feb 06)
- Re: MTU of the Internet? George Swallow (Feb 06)
- Re: MTU of the Internet? Dorian R. Kim (Feb 05)
- RE: MTU of the Internet? Tony Hain (Feb 06)
- Message not available
- Re: MTU of the Internet? Jay R. Ashworth (Feb 06)
- Re: MTU of the Internet? Sean M. Doran (Feb 07)
- Re: MTU of the Internet? Paul A Vixie (Feb 07)
- Re: MTU of the Internet? Phil Howard (Feb 07)
- Re: MTU of the Internet? Paul A Vixie (Feb 07)
- Re: MTU of the Internet? Phil Howard (Feb 07)
- Re: MTU of the Internet? Perry E. Metzger (Feb 08)
- Re: MTU of the Internet? Frank Kastenholz (Feb 09)
- Message not available
- Re: MTU of the Internet? Jay R. Ashworth (Feb 09)
- Message not available
- Re: MTU of the Internet? Marc Slemko (Feb 07)
- Re: MTU of the Internet? Paul A Vixie (Feb 07)
- Re: MTU of the Internet? Phil Howard (Feb 08)
- HTML layout (was Re: MTU of the Internet?) Stephen Sprunk (Feb 08)
- Re: HTML layout (was Re: MTU of the Internet?) Patrick W. Gilmore (Feb 12)
- Message not available
- Re: MTU of the Internet? Jay R. Ashworth (Feb 08)
- Re: MTU of the Internet? Marc Slemko (Feb 08)