On Fri, Feb 25, 2011 at 08:40:10PM +0100, Manuel Guesdon wrote: > "systat -s 2 vmstat": > > 3.2%Int 0.1%Sys 0.0%Usr 0.0%Nic 96.8%Idle > | | | | | | | | | | |
The numbers presented here are calculated against the sum of your CPUs. Since you are running bsd.mp with hyperthreading turned on, your machine has "16" CPUs; each CPU accounts for about 6% of the total available so the "3.2%Int" value in your systat vmstat means that you have one cpu (the only one that is actually working in the kernel) about 50% in interrupt context. The exact behaviour varies from hardware to hardware, but it's not surprising that you start losing packets at this level of load.
