Re: [PATCH] add some drop_caches documentation and info messsge

[Dave Hansen]

On 10/24/2012 02:06 PM, Borislav Petkov wrote:
> On Wed, Oct 24, 2012 at 01:48:36PM -0700, Andrew Morton wrote:
>> Well who knows. Could be that people's vm *does* suck. Or they have
>> some particularly peculiar worklosd or requirement[*]. Or their VM
>> *used* to suck, and the drop_caches is not really needed any more but
>> it's there in vendor-provided code and they can't practically prevent
>> it.
> 
> I have drop_caches in my suspend-to-disk script so that the hibernation
> image is kept at minimum and suspend times are as small as possible.
> 
> Would that be a valid use-case?

Sounds fairly valid to me.  But, it's also one that would not be harmed
or disrupted in any way because of a single additional printk() during
each suspend-to-disk operation.

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