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Firefox OS/Performance/Boot Sequence Optimization: Difference between revisions
Firefox OS/Performance/Boot Sequence Optimization (view source)
Revision as of 19:05, 6 June 2014
, 6 June 2014→Bootchart
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Once init has been replaced on the device [[FirefoxOS/Performance/Modifying boot.img| | |||
Once init has been replaced on the device [[FirefoxOS/Performance/Modifying boot.img|(see process here)]], to enable logging one simply creates a file '''|'''/data/bootchart-start'''|''' on the device containing an integer representing the number of seconds for which bootchart should collect data, and then reboot the device. | |||
Bootchart data is pulled from the device with the system/core/grab-bootchart.sh script, and presented in the form of a bootchart.tgz file. With the data collected one can then generate graphs by invoking: | Bootchart data is pulled from the device with the system/core/grab-bootchart.sh script, and presented in the form of a bootchart.tgz file. With the data collected one can then generate graphs by invoking: | ||