schedule history between 2 interrupts

Hi ,

i have a gap of 2-3 ms between 2 usb interrupts callback .

i want to know which kernel/user threads execute in the gap of 2-3 ms .

basically i want to log schedule history between 2 usb interrupts callback .

which data structures / functions can i use to furnish schedule
logging history for this case ?

Regards
Amit Nagal