Re: Auto-tuning work_mem and maintenance_work_mem - Mailing list pgsql-hackers

On Thu, Oct 10, 2013 at 1:23 AM, Magnus Hagander <magnus@hagander.net> wrote:
> I think it would be even simpler, and more reliable, to start with the
> parameter to initdb - I like that. But instead of having it set a new
> variable based on that and then autotune off that, just have *initdb*
> do these calculations you're suggesting, and write new defaults to the
> files (preferably with a comment).
>
> That way if the user *later* comes in and say changes shared_buffers,
> we don't dynamically resize the work_mem into a value that might cause
> his machine to die from swapping which would definitely violate the
> principle of least surprise..

+1 for all of that.  I completely agree.

-- 
Robert Haas
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