Not a lot to show today but I had a quick go at the new Java ARP2 alpha release parser and compared it to my Raptor parser, written in C and probably does a lot less checking. ARP2 is faster than ARP1 - I tried it out on a significant bit of rdf/xml with about 270K triples but Raptor remains up to 40x faster than ARP2. The figures:
| Parser | Time | Relative to Raptor |
|---|---|---|
| ARP1 1.0.5 | 216s | 54x |
| ARP2 alpha (JDK 1.4.1-01) | 135s, 157s, 165s, 164s | 33-41x |
| Raptor (0.9.8 CVS) | 4s, 4s | 1x |