Re: [OSM-talk] rendering map tiles with mapnik - hardware requirements

2011-03-01 Thread Robin Paulson
On 2 March 2011 00:42, M∡rtin Koppenhoefer dieterdre...@gmail.com wrote:
 Yes, you will not need a very big machine. I am currently rendering
 Italy (similar in size to NZ) and it takes around 2 days with a really

haha. italy has 14 times the data of NZ, so i guess we can reduce that
time somewhat...

 lame laptop (3 GB RAM, Intel Core2 Solo U3500 @1.4 GHz) for Zoomlevels
 0-15 (one day for Level 0-14) and a quite complex stylesheet.

excellent, this is looking more like the sort of hardware i imagined

cheers for the advice guys

-- 
robin

http://tangleball.org.nz/ - Auckland's Creative Space
http://openstreetmap.org.nz/ - Open Street Map New Zealand
http://bumblepuppy.org/blog/

___
talk mailing list
talk@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk


Re: [OSM-talk] rendering map tiles with mapnik - hardware requirements

2011-03-01 Thread M∡rtin Koppenhoefer
2011/3/1 Robin Paulson robin.paul...@gmail.com:
 On 2 March 2011 00:42, M∡rtin Koppenhoefer dieterdre...@gmail.com wrote:
 Yes, you will not need a very big machine. I am currently rendering
 Italy (similar in size to NZ) and it takes around 2 days with a really

 haha. italy has 14 times the data of NZ, so i guess we can reduce that
 time somewhat...

 lame laptop (3 GB RAM, Intel Core2 Solo U3500 @1.4 GHz) for Zoomlevels
 0-15 (one day for Level 0-14) and a quite complex stylesheet.

 excellent, this is looking more like the sort of hardware i imagined


excuse me, I was unprecise. I am rendering the whole world up to zoom
5, and from 6 to 8 central Europe, but 9 to 15 only a part of Italy
(43 to 40.6 lat), so the fewer data for NZ would get compensated by
the bigger area. I use a really basic setup though, which is not
efficient (no metatiles), so I guess there is room for optimization. I
am sure in a few days you can render all of NZ with an ordinary
desktop. also

If you want to keep up to date, apply diffs, and render at the same
time you will need something bigger then my setup.

cheers,
Martin

___
talk mailing list
talk@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk


[OSM-talk] rendering map tiles with mapnik - hardware requirements

2011-02-28 Thread Robin Paulson
we at OSM New Zealand are looking at rendering our own (NZ-only)
tiles, and we'd like to get a rough idea of the hardware requirements
we will need

are there any rules of thumb for how long it would take to render a
given lat/lon bbox, using mapnik?

i assume lat/lon is the independent variable, although i guess
density/complexity of data will affect things as well.

disk space, cpu, ram, time would be useful

cheers,

-- 
robin

http://tangleball.org.nz/ - Auckland's Creative Space
http://openstreetmap.org.nz/ - Open Street Map New Zealand
http://bumblepuppy.org/blog/

___
talk mailing list
talk@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk


Re: [OSM-talk] rendering map tiles with mapnik - hardware requirements

2011-02-28 Thread Richard Weait
On Mon, Feb 28, 2011 at 4:00 PM, Robin Paulson robin.paul...@gmail.com wrote:
 we at OSM New Zealand are looking at rendering our own (NZ-only)
 tiles, and we'd like to get a rough idea of the hardware requirements
 we will need

 are there any rules of thumb for how long it would take to render a
 given lat/lon bbox, using mapnik?

 i assume lat/lon is the independent variable, although i guess
 density/complexity of data will affect things as well.

 disk space, cpu, ram, time would be useful


It depends.  These two metatiles rendered in 18 seconds and 1.5
seconds.  So it can be all over the place depending.  This box is busy
doing other things too.

http://weait.com:8080/map/shield.html?zoom=6lat=-41.73199lon=173.35156layers=BFF

zooming in to CHCH metatiles were well under a second.

You can get by with a modest box as long as you don't mind waiting and
have little load.  OSM has a monster with 96GB ram and many fast disks
in RAID.  You can probably keep a good size group happy with

a quad core
8 GB ram
1 TB of disk

And the faster you can make your disks the better, as per Frederik's
presentation at SotM last year.

Best regards,
Richard

___
talk mailing list
talk@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk


Re: [OSM-talk] rendering map tiles with mapnik - hardware requirements

2011-02-28 Thread Stephan Knauss

On 28.02.2011 22:41, Robin Paulson wrote:

a quad core
8 GB ram
1 TB of disk

as high as that! wow, i thought it'd be way lower for ~200MB of
uncompressed data


It IS a lot lower. The thaimap.osm-tools.org is running on a virtual 
machine. It has 1GB of guaranteed RAM and 2x2 GHz guaranteed CPU. 
neither load nor RAM seams to be a problem.


Maybe disk-io could be a problem in a shared environment.

Stephan

___
talk mailing list
talk@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk