[OpenLayers-Dev] Patch for a ka-Map cached layer

[Paul Spencer]

Hi Pedro,

sounds like you are making good progress :)  You should be able to log  
in at http://trac.openlayers.org/ by following the instructions in the  
grey box at the top left of that page and then you can create tickets.


On 10-Apr-08, at 9:24 PM, Pedro Simonetti wrote:

<snip>

> The other change was related to the directory structure of the  
> cache. There
> was
> a slighly difference between the directory generated by  
> "precache2.php", and
> the
> one generated by "tile.php", the code already in use at OL.
>
> precache2.php:
> var/cache/World/50000/Group_Name/def/t-440320/l20480
>
> tile.php:
> var/cache/World/50000/Group_Name/def/t-440320l20480
>
> I don't know why this was changed, and I would like to hear some  
> opinions.
> What's the best structure? Or both has the same performance? I mean, I
> suppose
> the second one would generate more folders inside the "def" folder for
> smaller
> scales like the street level scale. But since I'm not a hardware  
> guru, I'm
> asking here in the list. This can somehow affect the hard disk  
> performance
> or
> something related?

You are exactly right, this was changed at one point to add an extra  
level of directory structure depth in an attempt to avoid file system  
limitations on the number of entries in a single directory.

Thank you for your hard work in figuring all this out.  I am sure that  
lots of people will finding both interesting and useful.

Cheers

Paul

__________________________________________

    Paul Spencer
    Chief Technology Officer
    DM Solutions Group Inc
    http://www.dmsolutions.ca/