'Openstreet Maps Tile render performance - 9 secs to render a new tile

I'm having a performance issue rendering new tiles with renderd and openstreetmaps.

I have 3 very power servers on a SSD SAN, and some servers with local SSD storage. To get right to the point, non-cachced tiles are taking RenderD about 9 seconds to render at any zoom level I have not pre-rendered (I believe I’ve gone level 14 or so -- ).

I’m done Modify postgres conf file with all the recommended buffer settings 150gigs + of RAM 32 processors Added a lot of extra recommended indexes

Nothing affects the performance at all – It’s stuck at about 9 seconds to render each new tile with zero server load.

Curious where to start – I even had a Postgres expert look to see what if any indexes could help…We added quit a few, but alas, nothing really made a difference.

Any thoughts?

postgresqlopenstreetmap


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