**-p**, **--period** *us* Set the *timerlat* tracer period in microseconds. **-i**, **--irq** *us* Stop trace if the *IRQ* latency is higher than the argument in us. **-T**, **--thread** *us* Stop trace if the *Thread* latency is higher than the argument in us. **-s**, **--stack** *us* Save the stack trace at the *IRQ* if a *Thread* latency is higher than the argument in us.