Joshua D. Drake wrote:
> Heikki Linnakangas wrote:
>> Bruce Momjian wrote:
>>> o Automatic adjustment of bgwriter_lru_maxpages
>>>
>>> We show this as waiting for performance results. I am thinking we
>>> should hold this for 8.4.
>> Agreed. I spent close to a week trying different benchmarks and
>> configurations and simple test cases on a test server and my laptop, and
>> couldn't demonstrate bgwriter making a positive impact in any
>> configuration I tried. The theory behind the patch is sound, but it
>> looks like a lot more testing and analysis is needed.
>
> Wouldn't real world testing be needed to actually gain insight to this
> patch?
I would expect a fairly static benchmark workload to benefit from having
a bgwriter, more so than more unpredictable real world applications.
-- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com