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-This version of init contains code to perform "bootcharting", i.e. generating log
-files that can be later processed by the tools provided by www.bootchart.org.
-
-On the emulator, use the new -bootchart <timeout> option to boot with bootcharting
-activated for <timeout> seconds.
-
-Otherwise, flash your device, and start it. Then create a file on the /data partition
-with a command like the following:
-
- adb shell 'echo $TIMEOUT > /data/bootchart/start'
-
-Where the value of $TIMEOUT corresponds to the wanted bootcharted period in seconds;
-for example, to bootchart for 2 minutes, do:
-
- adb shell 'echo 120 > /data/bootchart/start'
-
-Reboot your device, bootcharting will begin and stop after the period you gave.
-You can also stop the bootcharting at any moment by doing the following:
-
- adb shell 'echo 1 > /data/bootchart/stop'
-
-Note that /data/bootchart/stop is deleted automatically by init at the end of the
-bootcharting. This is not the case of /data/bootchart/start, so don't forget to delete it
-when you're done collecting data:
-
- adb shell rm /data/bootchart/start
-
-The log files are placed in /data/bootchart/. You must run the script tools/grab-bootchart.sh
-which will use ADB to retrieve them and create a bootchart.tgz file that can be used with
-the bootchart parser/renderer, or even uploaded directly to the form located at:
-
- http://www.bootchart.org/download.html
-
-NOTE: the bootchart.org webform doesn't seem to work at the moment, you can generate an
- image on your machine by doing the following:
-
- 1/ download the sources from www.bootchart.org
- 2/ unpack them
- 3/ in the source directory, type 'ant' to build the bootchart program
- 4/ type 'java -jar bootchart.jar /path/to/bootchart.tgz
-
-technical note:
-
-This implementation of bootcharting does not use the 'bootchartd' script provided by
-www.bootchart.org, but a C re-implementation that is directly compiled into our init
-program.