[Tile-serving] Fwd: Mysterious mod_tile/mapnik bottleneck seems to be in save_as_png8

Peter Devoy peter at 3xe.co.uk
Sat Jul 2 12:01:56 UTC 2016


Hi all

I am setting up a tile server and with all layers disabled am getting
TTFB latencies from 2ms all the way up to 600ms.

Might anyone know why this is please?  I have posted some details in
the help section:

https://help.openstreetmap.org/questions/50541/mysterious-mod_tilemapnik-bottleneck-seems-to-be-in-save_as_png8

Kind regards


Peter



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