> how much, if any improvements would they get from upgrading to 3.5?
It depends on hardware and workload. A newer kernel will be able to use hardware an older one wouldn't be able to. It'll also do some newer tricks (I gather the work on TCP is yielding big performance improvements). I also like BtrFS, but won't deploy it to production just yet.
It depends on hardware and workload. A newer kernel will be able to use hardware an older one wouldn't be able to. It'll also do some newer tricks (I gather the work on TCP is yielding big performance improvements). I also like BtrFS, but won't deploy it to production just yet.