Re: [2.1.120-1] works fine, ipv4 seems a bit faster

Chris Wedgwood (chris@cybernet.co.nz)
Sun, 30 Aug 1998 04:40:24 +1200


On Sat, Aug 29, 1998 at 09:34:13AM -0700, Benjamin Redelings I wrote:

> Well, it seems to establish http connections faster. I'm using
> netcsape 4.06, these are probably http 1.1 connections. So
> basically sites load faster. You noticed, I take it, that
> pre-patch-2.1.120-1 was basically a big net overhaul from (I think)
> ANK...

Errr... establishing an http connection with netscape is a pretty
touchy-feeling way to measure speed, and it often involves alot more
than just TCP...

Do you have another machine on the network you can http/ftp from and
get a reasonable measure of its speed? I use wget and get something
like this:

[me:1] caffeine:~$ !wget
wget -S http://www.cs.auckland.ac.nz/~pgut001/links.html
--04:37:09-- http://www.cs.auckland.ac.nz:80/%7Epgut001/links.html
=> `links.html.2'
Connecting to X:80... connected!
Proxy request sent, fetching headers...
1 HTTP/1.0 200 OK
2 Date: Thu, 11 Jun 1998 04:38:46 GMT
3 Server: NCSA/1.5
4 Content-Type: text/html
5 Last-Modified: Mon, 25 May 1998 23:00:46 GMT
6 Content-Length: 245022
7 Age: 123382
8 X-Cache: HIT from X
9 Proxy-Connection: close
10 Accept-Ranges: bytes
11

0K -> .......... .......... .......... .......... .......... [20%]
50K -> .......... .......... .......... .......... .......... [41%]
100K -> .......... .......... .......... .......... .......... [62%]
150K -> .......... .......... .......... .......... .......... [83%]
200K -> .......... .......... .......... .........
[100%]

04:37:19 (23.21 KB/s) - `links.html.2' saved [245022/245022]

That is, I grab a URL thats cached in a proxy on the LAN. As you can
see, the speed I get is pretty unspectacular... I've added debugging
code to try and track down why, but as soon as I have more that a
certain amount of debugging code in there, the TCP speed increases
making the problem hard for me to diagnose....

-cw

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