FreeBSD and NetZero
Doug Hardie
bc979 at lafn.org
Thu Nov 25 00:14:35 PST 2004
On Nov 24, 2004, at 23:23, Ted Mittelstaedt wrote:
>
> They are called dialup accellerators, and an entire industry has grown
> up to make and sell these programs, with the sole purpose of shagging
> money out of stupid people who run ISP's and don't understand you
> cannot
> compress jpgs, zips, .mp3s and other precompressed data that people
> download.
You might want to try one first before making those statements. I run
an ISP that makes SlipStream available for our users who want it. We
find that it does make improvements. However, the amount of
improvement is dependent on the settings you configure. JPGs etc can
be easily compressed. You re-encode the JPG image using a lower
quality setting. You can achieve significant download time savings
that way. SlipStream lets to select the image quality setting to give
the quality/improvement you want for initial image viewing. You can
always reload the original image quality then if you need it.
SlipStream also uses a newer compression algorithm than those currently
used by PPP. Its not clear just how much more effective this is as its
quite difficult to measure.
SlipStream is not for everyone. There are other issues where its not
totally transparent and it causes issues with some internet services.
However, when used properly you can achive significant improvements in
download times.
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