On Wed, Jan 31, 2018 at 4:03 AM, Vitaliy Garnashevich <
vgarnashev...@gmail.com> wrote:

> The results look really confusing to me in two ways. The first one is that
> I've seen recommendations to set effective_io_concurrency=256 (or more) on
> EBS.

I would not expect this to make much of a difference on a table which is
perfectly correlated with the index.  You would have to create an accounts
table which is randomly ordered to have a meaningful benchmark of the eic

I don't know why the default for eic is 1.  It seems like that just turns
on the eic mechanism, without any hope of benefiting from it.



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