[clug] OT: Protesting the proposed clean feed?
Michael Carter
mcarter at funnelback.com
Thu Oct 23 02:42:17 GMT 2008
They've done more than the one trial on this.
From the ACMA trial report that was sent to this list recently
(http://www.acma.gov.au/webwr/_assets/main/lib310554/isp-level_internet_content_filtering_trial-report.pdf)
comes:
"The previous trial reported that when filters were connected to the
test network and actively filtering performance degradation ranged from
75 per cent to a very high 98 per cent between the best and worst
performing filter products. In the current trial the corresponding
performance degradation varied across a greater range—from a very low
two per cent to 87 per cent between the best and worst performing filter
products."
> The trial that the ACMA have done, which I believe they didn't use
> MD5, caused a degradation speed of over 80%. From what I have read, if
> you do the maths and find out the speed each end user would have, it
> is about equivalent of a 56k modem... so, without MD5, the internet
> speed is 20% of a 56k modem.
>
> Keep in mind the test was done in an idea lab environment.
>
> I can't imagine the overhead it would cause if MD5 or SHA1 was used,
> the bottleneck here is really the CPU, if they are going to calculate
> huge number of hashes on the CPU as well, yea...
>
>
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