Re: Speeding up JSON + TSQUERY + GIN

["Sven R. Kunze" <srkunze@xxxxxxx>]

On 28.02.2017 17:49, Jeff Janes wrote:

Oh.  In my hands, it works very well.  I get 70 seconds to do the {age: 20} query from pure cold caches, versus 1.4 seconds from cold caches which was followed by pg_prewarm('docs','prefetch').

How much RAM do you have?  Maybe you don't have enough to hold the table in RAM.  What kind of IO system?  And what OS?

On my test system:

RAM: 4GB
IO: SSD (random_page_cost = 1.0)
OS: Ubuntu 16.04

Regards,
Sven