This morning i felt hot air blowing out of my laptop. "That's funny," i thought, "it ought to be sitting idle." I was not running any system monitoring software, but i opened the lid, unlocked the screen, and ran top. It showed accounts-daemon taking 100% CPU usage. This is on Slackware64-15.0. After a few seconds it settled down. A quick search for ["accounts-daemon" high cpu] showed that many people have experienced problems with accounts-daemon.

Here are excerpts from two articles on the subject.

"accounts-daemon... is a potential security risk. It is part of AccountsService, which allows programs to get and manipulate user account information. I can’t think of a good reason to allow this kind of behind-my-back operations, so I mask it."

https://www.linux.com/topic/desktop/...artup-process/

"Back in 2012 Chris Siebenmann observed that the Accounts service, which is a system-wide Desktop Bus server, operated in a hugely inefficient and rather dodgy manner. Some of the problems in its architecture that were highlighted then appear to remain to this day. "

https://unix.stackexchange.com/a/443711