Re[2]: [PERFORM] pgtune + configurations with 9.3

Fri, 14 Nov 2014 17:06:54 +0000 от Shaun Thomas <sthomas(at)optionshouse(dot)com>:
> Alexey,
>
> The issue is not that 8GB is the maximum. You *can* set it higher. What I'm saying, and I'm not alone in this, is that setting it higher can actually decrease performance for various reasons. Setting it to 25% of memory on a system with 512GB of RAM for instance, would be tantamount to disaster. A checkpoint with a setting that high could overwhelm pretty much any disk controller and end up completely ruining DB performance. And that's just *one* of the drawbacks.
>
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Ok. Just need to know what think another developers about this - should pgtune care about this case? Because I am not sure, what users with 512GB will use pgtune.

--
Alexey Vasiliev