[Tilesathome] tiles with max CPU/Mem usage ?

[Dirk-Lüder Kreie]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Florian Lohoff schrieb:
> Hi,
> 
> i just set up a machine for tiles at home and it renders tiles around
> my place wonderful. I read there are some mem hog tiles? Does someone
> have an example (just as an burn in test). This probably should be
> kept in the wiki which tiles to test on before uploading tiles...

The tile 2099 1355 12 (central Rotterdam) is my personal benchmark for
t at h rendering. This is probably not the most complex tile, but it should
come close.

> Btw i read some discussions in the archive concerning tile render times
> and the central instance handing out tiles again.
> 
> As an idea - The Debian Package Buildds take note on build times and
> memory usage of every package and builds get only aborted after last
> package build time * 2.
> 
> Probably it would be good to store this information in the central
> location for the tiles rendered so that the same tile gets not handed
> out again after this amount of time has been taken and no upload happened.
> 
> Storing the last memory consumption also would make it possible to
> include smaller machines as those only would get handed tiles with 
> approximate lower memory needs.

Since the amount of metadata is currently one bottleneck of t at h we will
probably not do it. (you'd have to ask Christopher Schmidt for specifics)

- --

Dirk-Lüder "Deelkar" Kreie
Bremen - 53.0952°N 8.8652°E

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.7 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFIDNKDFUbODdpRVDwRAgo+AKCaWsxAM//D0J5cLVl7BoVfN+O/QACdFUIq
KLFF3U/FD5G1cGlm8nEFKGA=
=fSjk
-----END PGP SIGNATURE-----

-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/x-pkcs7-signature
Size: 3743 bytes
Desc: S/MIME Cryptographic Signature
URL: <http://lists.openstreetmap.org/pipermail/tilesathome/attachments/20080421/d9180f02/attachment.bin>