Re: [PATCH 00/23] per device dirty throttling -v8

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On Sat, 2007-08-04 at 22:11 +0200, Ingo Molnar wrote:
> * Ingo Molnar <[email protected]> wrote:
> 
> > +#ifdef CONFIG_FASTATIME
> > +	if (!(flags & (MNT_NOATIME | MNT_NODIRATIME)))
> > +		mnt_flags |= MNT_RELATIME;
> > +#endif
> 
> btw., "relatime" does not seem to make much of a difference, if i do 
> this:
> 
>   ls -l x ; sync
> 
> on a "relatime" mounted filesystem ('x' is a regular file), then there's 
> disk IO for every such command. Only if i mount it noatime,nodiratime do 
> i get zero disk IO. Or my patch is wrong somehow.

do we have reldiratime ?


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