Florian Lohoff schrieb:
On Fri, Jun 06, 2008 at 07:24:20PM +0200, Frederik Ramm wrote:Hi,The advantage is that writing articles to a storage means only appending or linear overwriting of the containers storage and expiring the old locations. Thing about a log structured filesystems.I don't understand this argument. You argue that filesystems cannot be trusted to do efficiently what they were designed to do, and that we would be better of coding something of our on on top?Yep - most filesystems are written to be multipurpose. To have a mix of large and small files as in your homedirectory. Having thousands or millions of small files in one or thousands of directory is not a topic which filesystems get optimized for.
Instead of proclaiming a bottleneck, why not show us?Things I can see in favor of these aggregated files would be that you would probably need to look at most at 4 of these on any higher zoomlevel (~z14 and up) to get a whole area out of them.
Sadly I don't have any statistics on the workload and/or bottlenecks we encounter *serving* the tiles, I only know of the bottleneck of uploading the tiles, which is getting the data onto the target disks.
I remain unconvinced that this method you propose would do much. So let me reiterate: Show us. -- Dirk-Lüder "Deelkar" Kreie Bremen - 53.0952°N 8.8652°E
signature.asc
Description: OpenPGP digital signature
_______________________________________________ Tilesathome mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/tilesathome
