On Tue, Sep 10, 2013 at 5:08 PM, Josh Berkus <josh@agliodbs.com> wrote:
> Merlin,
>
>> I vote 4x on the basis that for this setting (unlike almost all the
>> other memory settings) the ramifications for setting it too high
>> generally aren't too bad. Also, the o/s and temporary memory usage as
>> a share of total physical memory has been declining over time
>
> If we're doing that, then we should change our general advice on this
> setting as well.
>
> Another argument in favor: this is a default setting, and by default,
> shared_buffers won't be 25% of RAM.
>
>> (meaning, that if you have a 256gb memory server and follow the advice
>> to set to 64gb, your memory for caching is approximately 64gb).
oops, meant to say "approximately 256gb".
merlin