[OSM-dev] Slow rendering

[Alex Chirigiu]

I will do that.

The strange things is that I have replicated that system on a HP Z600 
(48Gb of ram, 2 x Xeon X5650, HDDs for storage and SSDs ONLY for the OS, 
RAID 1 on both) and it seems that it is twice as fast with the same 
settings...It may be because of the ESXI...I don't know yet.
Regarding the ESXI: I have the High Performance option enabled, all the 
updates done, that version is the one that match the server specs 
entirely, the H700 controller is running and I've tried all the adapters 
type from the contextual config menu and so on.

On 04-May-21 17:32, Stephan Knauss wrote:
> On 04.05.2021 14:59, Hartmut Holzgraefe wrote:
>> On 04.05.21 13:50, Alex Chirigiu wrote:
>>> Europe to Zoom 18/19 maybe. We managed to render Z15 completely, but 
>>> it took like 17 days...
>>
>> that would be in the ballpark of about 50 tiles per second, right?
>
> I think this depends on the definition of "Europe" in this context.
>
> According to the tile calculator on Geofabrik, a bounding box of 
> Europe covers around 26M tiles. So 406,250 metatiles.
>
> With this rendered in 24.480 minutes, we end up in a ballpark of 16-17 
> metatiles per minute (or 17 tiles per second).
> That number sounds a bit slow, as even my tiny Hetzner EX52 is 
> offering nearly twice that speed.
>
> I hope that Alex is going to share some figures and optimization 
> results here on the list.
> So @Alex: Even with you potentially paying someone for optimizing your 
> rendering stack, would be great if you could share the results so 
> others could benefit in the future as well.
>
> Stephan
>
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