| Re: Attn: JimBoss, Isis, etc..Astraweb, Giganews - speed? |
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| Isis (isis55423@hotpop.com) |
2009/09/01 20:40 |
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NNTP-Posting-Date: Tue, 01 Sep 2009 21:40:17 -0500
From: Isis <isis55423@hotpop.com>
Newsgroups: alt.binaries.dvd.criterion
Subject: Re: Attn: JimBoss, Isis, etc..Astraweb, Giganews - speed?
Date: Tue, 01 Sep 2009 21:40:09 -0500
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On Wed, 02 Sep 2009 11:44:18 +1200, Hubchy <ablank.field@nothing.com> wrote:
:On Tue, 01 Sep 2009 14:40:49 -0500, Isis <isis55423@hotpop.com> wrote:
<snip>
:>:Smaller articles result in better propagation.
:>
:>Extraordinary claims require extraordinary proof.
:
:Slightly OT but... I love your skeptical mantra. A great version of
:Occam's Razor to apply to claims such as those made about alien
:abductions, satanic ritual abuse, Homeopathy, etc.
<snip>
:>But if smaller is better, then why not just post 64 KB articles? (5000 yEnc)
The above should have read: (500 yEnc), but I typo'ed. Like my cat, I tend to
tremble a bit just before I go in for the kill. :)
<snip>
:I'm clearly confused. I thought that when you talked about the
:'largest sized article' (1.28 mbs) that you were referring to
:something like a binary RAR (as part of a series). So, for instance, I
:assumed that each 120 mb RAR posted in the Carl Dreyer 'My Metier'
:film constitutes one article.
:
:Maybe each RAR actually consists of vast numbers of articles?
Maybe it is the terminology you find confusing? Many people call the articles
'segments'.
Here it is from scratch:
A yEnc line is 128 Bytes (although in practice they vary a tiny bit).
So when you set the number of yEnc lines in PowerPost <SetUp> <Program> (and
also in QuickPar <Options>), you are determining the size of your yEnc article.
PowerPost 2000 originally came with a default install setting of 1950 yEnc
lines. Using my trusty old middle-school arithmetic, I find the article size to
be 249.6 KB (multiplying the 1950 lines x 128 Bytes.) This was to make sure that
even if some of the lines were slightly more than 128 Bytes, the total article
size would never exceed 256 KB (2000 lines), because if it did, the NSP would
reject the article as 'Too Large'. (As a point of trivia: Even at 1950 lines an
article would occasionally exceed 256 KB. It was so rare that it didn't really
matter, however. There were far more propagation problems in those old dial-up
days of 20% .PARs than getting a 'Too Large' rejection every month or two.
Still, 1875 lines would have been a better default setting.)
Fast-forward to September 2009: As NSPs began accepting larger article sizes
(first 512 KB @ 4000 lines, then 1024 KB @ 8000 lines, today 4096 KB @ 32000
lines) many of us posters dutifully followed with settings of 3750, 7500, and
30000, respectively. (The 2048 KB barrier (15000 lines) was never used.)
So as things stand today, most (if not all) NSPs are at the 4096 KB article size
with the sole exception of Astraweb's 1536 KB limit.
Why larger articles are better than smaller articles will have to remain another
story for another day.
Isis
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