Tis over 66,000 now, and I can't say I've ever noticed an impact in performance because of it.
That's because it's only filtering your quarter-megabit, derspatz.
Now take the same system and plug it into a 10Gbit or 40Gbit firehose.
Not a chance in hell.
Yeah, I can appreciate that, Mark. I can also appreciate how well the likes of BlueCoat did the filtering thing based on access levels for the state wide client I was with up to a few months ago before moving over to a mob considerably international and even more generous with filtered internut access.
I've never noticed any speed impacts, only page denials for tubes etc ... but hey, I'm a 256/64 kinda guy, so anything more than that is a treat. :)
For those who want to know what I mean by Bluecoat, see:
http://en.wikipedia.org/wiki/Blue_Coat_Systems
Hard to imagine that there are all that many large businesses out there any more who allow unfettered/unfiltered internut access to their employees. To begin with, I suspect it just wouldn't fly with internal Duty Of Care requirements ...
regarDS