1 # bootio # 2 3 The bootio tool records I/O for processes during boot. 4 To use bootio kernel must be compiled with this flags: 5 6 CONFIG_TASKSTATS=y 7 CONFIG_TASK_DELAY_ACCT=y 8 CONFIG_TASK_XACCT=y 9 CONFIG_TASK_IO_ACCOUNTING=y 10 11 To use bootio make sure it's included in product config for the board. 12 Create file /data/misc/bootio/start with a command like the following: 13 14 adb shell 'echo "$TIMEOUT $SAMPLES" > /data/misc/bootio/start' 15 16 Where the value of $TIMEOUT corresponds to the desired bootio period in 17 seconds and $SAMPLES corresponds to the desired number of samples. 18 19 Note: /data/misc/bootio/start is not deleted automatically, so don't 20 forget to delete it when you're done collecting data. 21 22 To see collected logs run: 23 24 adb shell bootio -p 25
