| Andrew Geissler | 95ac1b8 | 2021-03-31 14:34:31 -0500 | [diff] [blame^] | 1 | #!/bin/sh |
| 2 | # |
| 3 | # oe-time-dd-test records how much time it takes to |
| 4 | # write <count> number of kilobytes to the filesystem. |
| 5 | # It also records the number of processes that are in |
| 6 | # running (R), uninterruptible sleep (D) and interruptible |
| 7 | # sleep (S) state from the output of "top" command. |
| 8 | # The purporse of this script is to find which part of |
| 9 | # the build system puts stress on the filesystem io and |
| 10 | # log all the processes. |
| 11 | |
| 12 | usage() { |
| 13 | echo "Usage: $0 <count>" |
| 14 | } |
| 15 | |
| 16 | if [ $# -ne 1 ]; then |
| 17 | usage |
| 18 | exit 1 |
| 19 | fi |
| 20 | |
| 21 | uptime |
| 22 | /usr/bin/time -f "%e" dd if=/dev/zero of=foo bs=1024 count=$1 conv=fsync |
| 23 | top -b -n 1 | grep -v "0 0 0" | grep -E ' [RSD] ' | cut -c 46-47 | sort | uniq -c |