[systemd-devel] [ANNOUNCE] systemd 212

Thomas Bächler thomas at archlinux.org
Fri Mar 28 02:22:44 PDT 2014


Am 26.03.2014 00:28, schrieb Kay Sievers:
>         * Timer units gained a new Persistent= switch. If enabled
>           timers configured this way will save to disk when they have
>           been last triggered. This information is then used on next
>           reboot to possible execute overdue timer events, that
>           couldn't take place because the system was powered off. This
>           enables simple anacron-like behaviour for timer units.

How do these timers interact with suspending or hibernation? If I
suspend the system and resume after the timer should have elapsed, the
timer won't be restarted. Will it still trigger on resume?

(Use-case: A system that rarely reboots and has a timer set daily at
midnight. The user always suspends the system at 11 and resumes it in
the morning.)

Another question: The documentation says that the timer will trigger
"immediately" when it is started. Is this accurate or is there some
holdoff time?


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