10us is still too short for any scheduling to occur... Yes, it is
on the order of 1000 CPU clock cycles, or 330 PCI cycles....

]         At IETF46 in Washington, DC  --- wireless             |  firewalls  [
]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net architect[
] mcr@sandelman.ottawa.on.ca http://www.sandelman.ottawa.on.ca/ |device driver[
] panic("Just another NetBSD/notebook using, kernel hacking, security guy");  [