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Article #59

To compress or not to compress?

#59
From: News Administrator
Date: Mon, 25 Jan 1993 02:40
20 lines
1545 bytes
My feed site has always complained about the low modem throughput he gets
from my site, as opposed to some of the other sites he feeds.  I always
blamed it on the creaky old Sun3 we use as our news machine, and on the
heavy system load.  So I took some measures to try and reduce the odds of
uuxqt, doexpire and newsrun running _while_ I'm loading from my feedsite.
It hasn't improved things much, if at all.

Then this other site that I've just started feeding mentioned that I'm
letting our modems negotiate compression, and that's a no-no when you're
uucping compressed files.  Has anybody done any comparisons of the total
throughput of compressed versus uncompressed files on a compressed versus
uncompressed modem connection?  Measuring bytes/second over the modem isn't
enough - since compression will mean fewer bytes have to go, but possibly
each byte will go slower.

I'm most interested in hard data on PEP, TurboPEP and V32bis/V42bis.

-- 
The Anonymous News Administrator (if you need to know, you already know)
I just administer the news, I don't make or state policy.
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From: news@gvc.com (News Administrator)
Newsgroups: news.admin.technical
Subject: To compress or not to compress?
Date: 24 Jan 1993 21:40:31 -0500
Organization: Not officially GeoVision Systems Inc., Ottawa, Ontario
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