On 06/05/11 17:13, Andreas Jonsson wrote: > I had not analyzed the parts of the core parser that I consider > "preproprocessing", and it came as a suprise to me that it was as slow > as the Barack Obama benchmark shows. But integrating template > expansion with the parser would solve this performance problem, and is > therefore in itself a strong argument for working towards replacing > it. I will write about this on wikitext-l.
That benchmark didn't have any templates in it, I expanded them with Special:ExpandTemplates before I started. So it's unlikely that a significant amount of the time was spent in the preprocessor. It was a really quick benchmark, with no profiling or further testing whatsoever. It took a few minutes to do. You shouldn't base architecture decisions on it, it might be totally invalid. It might not be a parser benchmark at all. I might have made some configuration error, causing it to test an unrelated region of the code. All I know is, I sent in wikitext, the CPU usage went to 100% for a while, then HTML came back. I've spent a lot of time profiling and optimising the parser in the past. It's a complex process. You can't just look at one number for a large amount of very complex text and conclude that you've found an optimisation target. -- Tim Starling _______________________________________________ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
