Freespacenotifier KDED module in kdereview

Jacopo De Simoi wilderkde at
Tue May 18 14:55:15 BST 2010

> On Monday 17 of May 2010, Lubos Lunak wrote:
> > On Monday 17 of May 2010, Jacopo De Simoi wrote:
> > > I've a question about this module, as far as I can understand it polls 
> > > the disk on which $HOME is mounted every minute to check the available
> > > disk space. This is something we carefully avoided to do in the plasma
> > > device notifier because by doing so we keep the disks awake instead of
> > > letting them sleep if unused if the user desires so. This module would
> > > probably upset laptop users, am I right? (ervin?)
> >
> >  Do you have some more details on this? I tried to keep my HDD spun down
> > after I had bought SSD and there was always something that kept spinning it
> > up, so eventually I've given up and I keep it unmounted until needed. As
> > far as I know laptops have a special mode for allowing them to spin down
> > the drive that does more aggressive caching and I don't understand why free
> > space, which is something very easy to cache, should keep the actual drive
> > active.
>  I've asked the local filesystem expert and according to him I'm right - under 
> normal circumstances at least for ext2-4, xfs and reiserfs statfs() means 
> kernel just reads values from memory, thus no disk access. So unless somebody 
> can prove otherwise I consider this a non-issue.
Excellent! This is good news indeed.
Thanks a lot, sorry for the noise, then.


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