Fedora Unity release

Bill Davidsen davidsen at tmr.com
Sun Feb 17 15:11:52 UTC 2008

Kam Leo wrote:
> On Feb 16, 2008 6:05 PM, Bill Davidsen <davidsen at tmr.com> wrote:
>> Does anyone have a bittorrent link for the Unity spins? I get 3-3.5Mbit
>> speed with torrent, and 200-400Kbit with that jigdo thing. Last month I
>> ran for five days and was still missing 27 parts, so it's kind of off my
>> list of usefully fast methods, using no parallelism at all, and not
>> letting users contribute to the supply.
>> --
>> Bill Davidsen <davidsen at tmr.com>
> The torrent speed that you obtained must of happened within the first
> month of the distro's availability. My past experience with Fedora
> Unity is that not long after release there were too few clients to
> make a torrent useful.  (Remember torrent clients only have to give
> back 4 K-bits/sec of bandwidth ) You are better off using jigdo.
The torrent speed was early last week, maybe the 12th, using a live CD 
boot on a Windows machine. Download of the original FC8 DVD iso image 
ran up to 385KB/s according to the NIC speed applet, average was about 
320KB/s over the total download. Pulling 9Alpha1 (a) took five days to 
complete, (b) after day three I had to keep telling it to retry getting 
all the things it didn't get, and (c) I didn't contribute anything to 
the distribution, meaning that every client has to pull every byte from 
the server.

I don't know where that 4K giveback comes from, maybe that's the lowest 
you can set or something, I normally set max_upload_rate to 400 day and 
800 night, so I don't impact outgoing bandwidth.

I can't see any way I'm better using jigdo, slower for me and more bytes 
coming from the server... worst combination of features. See my earlier 
post this morning on comparing the methods. Jigdo may be a good way to 
create a new image when only a few bytes change, to get a full image it 
just does a poor job for both the client and server.

Bill Davidsen <davidsen at tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot

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