Solve the problem that the CPU usage of update-apt-xapian-index in Ubuntu is too high.

The apt-xapian-index package is very convenient to use, but I am always exhausted (the first line): There are two solutions online: 1. delete apt-xapian-index, but after deleting it, quicksearch cannot be used and it is inconvenient to find the software. Fortunately, use the second solution: edit apt-xapian-indexgedit/etc/cron. weekly/apt-xapian-index is very convenient to use, but I have to exhaust my cpu (the first line ):


There are two solutions on the Internet:
1. delete apt-xapian-index, but after deletion, quick search cannot be used and it is inconvenient to find software.


Fortunately, use the second solution:
Edit apt-xapian-index

Gedit/etc/cron. weekly/apt-xapian-index

Put row 8
Nice $ IONICE-c3 $ CMD -- quiet
Changed:
Nice-n 19 $ IONICE-c3 $ CMD -- update -- quiet