I used blktrace and fio to trace the I/O events of the NVMe SSD in Ubuntu 22.04. However, I only got Q events in my report.
Here are my experimental steps:
1.Open blktrace to monitor /dev/nvme0n1.
blktrace -d /dev/nvme0n1 -w 20 -o - | blkparse -i - > result.log
2.Use fio to perform I/O operations on /dev/nvme0n1.
fio ./myconfig.fio --section=test