1. #!/usr/bin/env bash
    2. # admin https://www.yuque.com/lwmacct
    3. Device=$1
    4. DISK=$2
    6. # ubuntu 磁盘延迟 https://unix.stackexchange.com/questions/261967/where-can-i-find-the-disk-latency-using-iostat-await-svctm-util
    7. # iostat -x 1 1 | grep "^$Device " | tail -1 | awk '{print $NF}'
    9. case $DISK in
    10. util)
    11.     nsenter --mount=/host/1/ns/mnt iostat -dxkt 1 1 | grep "^$Device " | tail -1 | awk '{print $NF}'
    12.     ;;
    13. await)
    14.     nsenter --mount=/host/1/ns/mnt iostat -dxkt 1 1 | grep "^$Device " | tail -1 | awk '{print $10}'
    15.     ;;
    16. r_await)
    17.     nsenter --mount=/host/1/ns/mnt iostat -dxkt 1 1 | grep "^$Device " | tail -1 | awk '{print $11}'
    18.     ;;
    19. w_await)
    20.     nsenter --mount=/host/1/ns/mnt iostat -dxkt 1 1 | grep "^$Device " | tail -1 | awk '{print $12}'
    21.     ;;
    23. esac