Tuning modern (i.e. 9.x) FreeBSD Systems for 'servers' - any guides?

[Karl Pielorz]

Hi,

We've got a number of 9.x systems in service - replacing a number of older 
6/7/8 ones.

In the olden days (going back quite a while) you had to fiddle around with 
stuff like NMBCLUSTERS, MAXUSERS etc. In fact, if you have a look around 
Google it's littered with guides/articles for this stuff, which appears to 
be all very out of date.

Does anyone have any links for 'modern' tuning guides - or is it simply not 
necessary with newer FreeBSD versions? (e.g. 9.x upwards) e.g. if the 
machine is amd64 w/6-8Gb of RAM - running GENERIC.

The servers typically handle lots of TCP sessions - so I'm just concerned 
about what in the olden days would have been network buffers etc.

Thanks,

-Karl