[Dovecot] NFS

[Timo Sirainen]

On 8.12.2006, at 0.39, Richard Laager wrote:

>> Timo, you use Debian - if you have liblockfile-dev installed, the
>> manpage of lockfile-create(3) has a section called "REMOTE FILE  
>> SYSTEMS
>> AND THE KERNEL ATTRIBUTE CACHE".
>
> Timo,
>
> I swear I read somewhere that you had implemented something like this,
> but I can't find it. Is it still necessary to disable the attribute
> cache to put indexes in NFS?

I intended to implement it, but I've still not gotten around to doing  
it. So yes, it's still needed.

> If so, do you have any idea how much of a performance impact that  
> is vs.
> clearing the attribute cache as needed?

Probably pretty bad.

> Any idea what it would cost to have you code this feature?

Maybe a couple of day's work, but I'm not sure how much better it  
would make the performance compared to disabling the attribute cache  
completely. Might be just as bad..
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