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I would like to run a small script every hour to change my wallpaper. Does running a standard cron daemon (like fcron, cronie) cost a disproportional amount of battery lifetime? I would not expect this, since there were probably smart people involved developing these programs, but I'd like to be sure.

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Cron daemon and light script like a wallpaper changer run once per hour will not have any notable effect on battery life. There might be notable effect only if you run intensive script very often.

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  • Thank you. Do you have any sources to prove your point or are you talking from experience? – opatut Jul 10 '15 at 10:27
  • I base this on experience. I tried looking for but could not find good source stating this clearly. Testing can be done with command like top or htop to observe how much resources Cron is using. You will find that CPU usage is minimal when compared to many other processes. This implies that its effect on battery life is also mimimal. – Madoc Comadrin Jul 10 '15 at 11:39

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