"dirty writeback" frequency to save power

Lea Gris lea.gris at noiraude.net
Thu May 8 12:54:58 UTC 2008

Flavio Costa a écrit :
> Maybe if you insert 'sys.vm.dirty_writeback_centisecs = 1500' in 
> '/etc/sysctl.conf' you can obtain the result you want.
> The value will not change as soon as you save the file you can either 
> reboot your machine or execute this command 'sysctl -p'

If you wnant to power-save more on disk access, just add noatime to the 
mount options in /etc/fstab

Who need accesstime updated on any file? nobody, nothing except the very 
specific use bye a news server.

Adding noatime to flash drives wil save their life time as well.

Why is it not the default ?

      Léa Gris - http://www.noiraude.net/
()   Campagne du ruban texte brut contre les courriels en HTML,
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