-a, --auto us
Set the automatic trace mode. This mode sets some commonly used options while debugging the system. It is equivalent to use -T us -s us -t. By default, timerlat tracer uses FIFO:95 for timerlat threads, thus equilavent to -P f:95.
-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.
- --dma-latency us
Set the /dev/cpu_dma_latency to us, aiming to bound exit from idle latencies. cyclictest sets this value to 0 by default, use --dma-latency 0 to have similar results.