Re: AW: [Rdfapi-php-interest] Scalability and performance

[Benjamin N. <bn...@ap...>]

Hi,
I'm about to release a new ARC "multi-store" in the next days
which will allow app-specific store tuning (e.g. customizable 
table layouts, hash generation, and index structures). As 
AndyS said, insert speed is a bottleneck with large stores,
and there is a trade-off between insert and query speed.
I haven't tested the scalability of the new ARC stores yet,
but some of them should work fine in an Mtriple environment.
It always depends on the type of queries, of course. A
"6 degrees of separation" query will kill even small stores ;)

However, ARC doesn't cover the whole syntax of SPARQL as
RAP does, and some of the store's features are still 
experimental (e.g. the split-up table space), at least in 
mysql 4.x.


hth a bit, more concrete info to be available soonish,
benjamin

--
Benjamin Nowack

Kruppstr. 100
45145 Essen, Germany
http://www.bnode.org/