Re: [OSM-dev] tile generation performance

2017-01-12 Thread Paul Norman 

On 1/12/2017 12:29 PM, Joseph Armbruster wrote:

Do you or anyone else know someone that has performed tile generation
for some of the lower levels / scales recently, say for levels 15 -
20?


Higher zooms (12+) typically take about 1 second per 8x8 metatile per 
CPU thread. 15+ tiles are not pre-rendered for the world, they are 
rendered on demand and cached. The OSMF pre-renders z0-z12 tiles, and it 
takes about a day to do this.


Depending on your hardware, these times could easily change by a factor 
of 2x.


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Re: [OSM-dev] tile generation performance

2017-01-12 Thread Joseph Armbruster 
Do you or anyone else know someone that has performed tile generation
for some of the lower levels / scales recently, say for levels 15 -
20?

Joe

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[OSM-dev] Application for Google Summer of Code (GSoC) 2017

2017-01-12 Thread Peter Barth 
Hi all,

in less than a week the time slot for organizations to apply for
this year's Google Summer of Code opens. In my opinion our
participation last year (and the years before) had been a
success. We got a bunch of coding done, we also got new students
that stick with our great project and community and our
organization got some money, too. I also did a survey the year
before last, asking all mentors what they think about the output
of GSoC, about their students and especially if they think we
should reapply: Everyone did think so. I also did a survey last 
year; it's also been unanimous to apply again but with not so
much mentors participating in my survey.

Anyways, I'm suggesting to apply again this year and I'm again
willing to do the administrative tasks. We can start to apply
starting with the January, 19th. If I don't hear objections I'll
go forward and apply next week.

Please also consider adding your project ideas to the wiki
page 
(https://wiki.openstreetmap.org/wiki/Google_Summer_of_Code/2017/Project_Ideas)
now. No matter if you also consider to mentor or not. I'll set 
up the rest of the wiki pages soon.

Thanks,
Peda


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Re: [OSM-dev] tile generation performance

2017-01-12 Thread Yves 
Joseph, 
Tiles are rendered on the fly and cached. The complete earth is not rendered,  
only requested tiles. 
This should give you an idea of the actual rendering time for tiles on 
openstreetmap.org:
http://munin.openstreetmap.org/openstreetmap/orm.openstreetmap/renderd_processed.html
and
http://munin.openstreetmap.org/openstreetmap/yevaud.openstreetmap/renderd_zoom.html
Yves 

Le 12 janvier 2017 19:50:15 GMT+01:00, Joseph Armbruster 
 a écrit :
>Hi,
>
>Who is the goto person for osm map tiling inquiries.  Specifically,
>i'd like to determine what some of your runtimes were for generating
>map tiles for the earth.
>
>Thank You,
>Joseph Armbruster
>
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[OSM-dev] tile generation performance

2017-01-12 Thread Joseph Armbruster 
Hi,

Who is the goto person for osm map tiling inquiries.  Specifically,
i'd like to determine what some of your runtimes were for generating
map tiles for the earth.

Thank You,
Joseph Armbruster

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