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