RHEL on Quad Quad core CPU's

[Tom Brown]

> If you have HyperThreading on such a beast, turn it off - its really not worth 
> it. (I've seen a performance _increase_ on a dual emt64 xeon by disabling 
> HT).

Yes thanks - this is what i was thinking, whether it best to turn off HT 
on a box like this. We have got a few quad dual cores and these seem to 
go better without HT enabled.

thanks