On Tuesday 07 June 2011 10:09:47 Andrey Smagin wrote: > I upgraded 2 day ago from 2010xxxx-current box on Intel D525MW. > System very slow down after that. > kern.hz=50 > in systat -vmstat - 140hpet interrupts/s > at top 25% in interrupts 25% in system > because hyperthreading system found 4 cpu. What does vmstat -i output? --HPS