bootchart binary package in Ubuntu Xenial arm64

 bootchart allows you to audit the boot sequence of your computer and
 generate a pretty chart of the processes run, including how long they
 took and how much CPU and I/O they used.
 .
 The auditing is performed by a tool that runs in your initramfs, or
 early in your boot sequence, and records system statistics as your
 computer boots.
 .
 Tarballs of this data are left in /var/log/bootchart; from these either
 PNG or SVG will be generated if pybootchartgui is installed.

Source package