how to reduce: 1. Stop clock synchronization systemctl stop chrony 2. Set the timezone to Dublin timedatectl set-timezone Europe/Dublin
3. Change the time to waitting for Daylight saving time switch timedatectl set-time "2024-03-30 23:59:50" At 0 o'clock, the system is executing atop logrotation. # cat /etc/cron.d/atop PATH=/bin:/usr/bin:/sbin:/usr/sbin # daily restart of atop at midnight 0 0 * * * root [ -d "/run/systemd/system" ] || /usr/share/atop/atop.daily& 0 0 * * * root [ -d "/run/systemd/system" ] && systemctl restart atop -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/2060082 Title: Dublin timezone cause systemd cpu high Status in systemd package in Ubuntu: New Bug description: Systemd version(249) in Jammy Jellyfish is too old, When using the Dublin time zone for daylight saving time switching,the CPU usage will suddenly increase to 100% starting from 2024-03-31 00:00:00 and last for 1 hour, but return to normal at 2024-03-31 02:00:00. plz backport the bugfix to v249 or update 255 version in Jammy Jellyfish to fix it. thank you. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/2060082/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp