Re: Auto-tuning work_mem and maintenance_work_mem

On 02/18/2014 12:19 AM, Andres Freund wrote:
> On 2014-02-16 21:26:47 -0500, Robert Haas wrote:
>> I don't think anyone objected to increasing the defaults for work_mem
>> and maintenance_work_mem by 4x, and a number of people were in favor,
>> so I think we should go ahead and do that.  If you'd like to do the
>> honors, by all means!
> 
> Actually, I object to increasing work_mem by default. In my experience
> most of the untuned servers are backing some kind of web application and
> often run with far too many connections. Increasing work_mem for those
> is dangerous.

Good point. Especially with pagination involved. Those OFFSET 40000
LIMIT 100 queries can be a killer.


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