Re: [HACKERS] Time to up bgwriter_lru_maxpages?

On Tue, Jan 31, 2017 at 5:07 PM, Jim Nasby <Jim.Nasby@bluetreble.com> wrote:
> On 11/29/16 9:58 AM, Jeff Janes wrote:
>>         Considering a single SSD can do 70% of that limit, I would say
>> yes.
>>
>>     Next question becomes... should there even be an upper limit?
>>
>>
>> Where the contortions needed to prevent calculation overflow become
>> annoying?
>>
>> I'm not a big fan of nannyism in general, but the limits on this
>> parameter seem particularly pointless.  You can't write out more buffers
>> than exist in the dirty state, nor more than implied
>> by bgwriter_lru_multiplier.  So what is really the worse that can happen
>> if you make it too high?
>
>
> Attached is a patch that ups the limit to INT_MAX / 2, which is the same as
> shared_buffers.

This looks fine to me.

-- 
Robert Haas
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